Adobe Acrobat costs around $20 a month. For most people — students, freelancers, small business owners, or anyone who just needs to edit a PDF once in a while — that's a hard number to justify. Especially when the task at hand is something simple: adding a signature, highlighting a clause, filling in a form field, or redacting a line of text before sharing.

The QuickPDFOnline PDF Editor covers every one of those tasks — and more — for free, in your browser, without installing a single thing. This guide walks through all 26 editing features: what each one does, when you'd actually use it, and exactly how to do it.

Add Text
Highlight Text
Draw Freehand
Add Shapes
Add Arrows
Add Lines
Insert Symbols
Add Signature
Add Notes
Add Stamps
Insert Images
Redact Content
Undo / Redo
Smart Alignment Guides
Erase Tool
Copy / Paste / Duplicate
Zoom In / Out / Fit
Resize & Rotate Shapes
Checkbox & Radio Buttons
Find (Text Search)
Print with Page Range
Add Blank Page
Line Spacing & Justify
Lock / Unlock Elements
Watermark
Font & Color Finder

How to Open a PDF in the Editor

Before getting into individual features, here's the starting point. The whole process takes about 10 seconds.

QuickPDFOnline PDF Editor - Edit PDFs Online in Your Browser
QuickPDFOnline PDF Editor interface with text editing, annotations, signatures, images, and redaction tools.
💡 Quick Overview

The screenshot above shows the complete QuickPDFOnline PDF Editor. Every feature works directly in your browser...

🎥 Watch PDF Editor Video Tutorial

See every PDF editing feature in action, including Add Text, Highlight, Draw, Sign, Redact, Insert Images, and more.

1

Go to the PDF Editor

Visit quickpdfonline.com/editor. No sign-up screen, no trial prompt — just the editor.

2

Upload your PDF

Click "Choose File" or drag and drop your PDF directly onto the page. Your file loads in the browser — it doesn't go anywhere else.

3

Use the toolbar

Once the PDF loads, the editing toolbar appears at the top. All features are accessible from here, with option panels appearing below the icon you click.

4

Download when done

Click "Download PDF" in the toolbar. Your edited file saves to your device — clean, no watermark.

Important: Everything processes in your browser. Your PDF is never uploaded to any server. This makes the editor safe to use with confidential documents — contracts, legal files, medical records, financial statements.

1. Add Text

01
Add Text
Add Content
This is probably the most-used feature in any PDF editor. You click anywhere on the page and type. But it's not just a plain text box — the editor gives you full font controls: family — including standard fonts like Arial and Times New Roman, Google Fonts like Montserrat and Playfair Display, over a dozen handwriting-style fonts like Dancing Script, Pacifico, and Allura, and Hindi/Devanagari fonts like Noto Sans Devanagari and Hind — plus size, bold, italic, underline, color, letter spacing, line spacing, and left/center/right/justify alignment. You can drag the text anywhere after placing it, and resize it if needed.

This is how most people fill out forms that aren't interactive, add notes to a document before sharing, or insert information that was missing from the original file.
How to use it
  1. Click the Text button in the top toolbar.
  2. Set your font family and size from the dropdowns right in the toolbar.
  3. Click anywhere on the PDF page to place the text cursor.
  4. Type your content. Drag the text box to reposition it.
  5. Use the mini floating toolbar above the text box for bold, italic, underline, alignment, and letter/line spacing.
Filling out a non-interactive form Adding your name/date to a document Inserting missing information into a scanned file

2. Highlight Text

02
Highlight Text
Annotate
The highlight tool works exactly like a physical highlighter — drag across text to mark it. You can change the highlight color and opacity, which makes it useful for color-coded reviews: yellow for important, red for concerns, green for approved. The highlight sits on top of the original text without modifying it.

Lawyers reviewing contracts, students studying, and anyone doing a document review will use this constantly.
How to use it
  1. Click the Highlight button in the top toolbar.
  2. Choose your highlight color and opacity from the panel that appears.
  3. Click and drag over the text you want to highlight.
  4. Release to apply. The highlight saves with the document.
Marking key clauses in a contract Color-coded document review Study notes on academic PDFs

3. Draw Freehand

03
Draw Freehand
Annotate
Freehand drawing lets you write or sketch directly on any PDF page — like drawing with a pen on paper. You control the stroke color and thickness. It's not the precision of a shape tool, but that's exactly the point: sometimes you need to circle something quickly, cross something out, sketch a diagram, or leave a handwritten-looking note on a document.

It's particularly useful on tablets or touch devices where you can draw naturally with a stylus.
How to use it
  1. Click the Draw button in the top toolbar.
  2. Select your pen color and stroke width from the options panel.
  3. Click and drag on the PDF to draw freehand.
  4. Release to finish each stroke. Multiple strokes can be added.
  5. Use Undo (Ctrl+Z) to remove the last stroke if needed.
Circling an error or item to fix Crossing out incorrect information Quick sketch or diagram on a blank page

4. Add Shapes

04
Add Shapes
Add Content
The shape tool gives you rectangles, circles (ovals), and other basic geometry that you can place and resize anywhere on the page. Shapes can be used as visual callouts, section dividers, emphasis boxes, or to block content (though for true privacy removal, use the Redact tool instead). You control the fill color, border color, opacity, stroke width, and line style (solid, dashed, or dotted).

One practical use: drawing a rectangle around a section of a document to visually frame it for a presentation or a handout.
How to use it
  1. In the top toolbar, click Rect or Circle.
  2. Click and drag on the PDF to draw the shape.
  3. Use the Move / Drag Shapes (Select) tool to reposition after placing.
  4. Adjust fill, border color, opacity, and line style from the panel that appears.
Framing a section for emphasis Adding a visual callout box Creating diagram overlays on a PDF

5. Add Arrows

05
Add Arrows
Annotate
Arrows let you point to something specific on the page — a figure in a table, a word in a paragraph, a detail in a diagram. This is the kind of annotation that's obvious when you need it: you want to draw someone's attention to a specific spot, and a text note alone doesn't quite do it. An arrow does.

You can control the arrow's color and weight. Draw it from any point to any other point on the page.
How to use it
  1. In the top toolbar, click Arrow.
  2. Click on the starting point of your arrow on the PDF.
  3. Drag to where the arrowhead should point, then release.
  4. Adjust color and stroke width as needed.
Pointing to a specific figure or value Annotating a diagram or chart Review markup — "this section needs revision"

6. Add Lines

06
Add Lines
Add Content
Lines are straight strokes without an arrowhead. They're used for things like underlining text that can't be underlined through the text tool (because it's in a scanned document), adding a horizontal divider between sections, or striking through content you want to mark as removed without actually deleting it.

Simple and underused — but when you need a clean straight line, freehand drawing just doesn't cut it.
How to use it
  1. In the top toolbar, click Line.
  2. Click your starting point on the PDF and drag to your endpoint.
  3. Release to place the line.
  4. Adjust color and line weight from the panel controls.
Underlining text in a scanned document Strikethrough on content to be removed Adding dividers between sections

7. Insert Symbols

07
Insert Symbols
Add Content
This is one of those features that sounds minor until you actually need it. The symbol panel includes checkmarks, crosses (✗), arrows (→, ←, ↑, ↓), asterisks, bullets, and special characters like ™, ©, ₹, €, and more. These are available directly from the toolbar — no copy-pasting from elsewhere needed.

Filling out a checklist on a scanned form? Click the checkmark symbol, place it in the box. That simple.
How to use it
  1. Click the Ω (Insert Symbol) button in the top toolbar.
  2. Click any symbol — ✓, ✗, →, ★, ™, ₹, €, and more.
  3. Click on the PDF page to place the symbol at that location.
  4. Resize and reposition just like regular text.
Checking boxes on a scanned checklist form Adding ™ or © to brand documents Inserting currency symbols in financial PDFs

8. Add Signature

08
Add Signature
Sign
The signature tool lets you sign a document without printing, signing by hand, and scanning it back. You can draw your signature using your mouse or touchscreen, and place it anywhere on the page. Once placed, you can resize and reposition it like any other element.

For everyday document signing — NDAs, agreements, authorization letters, HR forms — this gets the job done in under a minute. No e-signature service subscription required.
How to use it
  1. In the top toolbar, click Signature.
  2. A drawing canvas appears — draw your signature using your mouse or finger.
  3. Click "Place Signature" to add it to the document.
  4. Drag it to the signature line and resize as needed.
  5. Download the signed PDF — it's ready to send.
Signing contracts and agreements Authorization letters and HR forms Any document requiring a physical signature

9. Add Notes

09
Add Notes
Annotate
Notes (also called sticky notes) attach to a specific point on the page as a colored note card with your own font size and color choice. This keeps the document clean while still allowing comments to be embedded right where they're relevant.

This is how reviewers and editors leave feedback on a PDF without cluttering the visual layout of the document itself.
How to use it
  1. In the top toolbar, click Note.
  2. Type your comment, choose a font size and note color.
  3. Click "Place Note", then click anywhere on the PDF to drop it there.
Leaving review comments for a colleague Flagging sections for follow-up Internal notes on client documents before sharing

10. Add Stamps

10
Add Stamps
Annotate
Stamps are pre-designed labels you can place on a document to communicate its status at a glance: "Approved," "Rejected," "Confidential," "Draft," "Reviewed," "Paid." They look exactly like rubber stamps — styled text with a border. On top of the built-in presets, you can also type your own custom text stamp or upload your own image as a reusable stamp — handy for a company logo stamp or a personal seal.

For businesses that review and approve documents regularly, stamps replace the need to print and physically stamp paper, then scan it back.
How to use it
  1. In the top toolbar, click Stamp.
  2. Choose a preset stamp, or type your own text/upload an image to create a custom one.
  3. Click on the PDF page where you want to place the stamp.
  4. Drag to reposition. Resize if needed.
Marking documents as Approved or Rejected Labelling drafts before final version Confidential stamp on sensitive documents

11. Insert Images

11
Insert Images
Add Content
You can insert a JPG or PNG image directly onto any page of the PDF. Once placed, it behaves like any other element — drag to position, resize by pulling the corners, and rotate it too. Common uses include adding a company logo, inserting a photo, placing a scanned signature image (as an alternative to drawing one), or embedding a chart or diagram from another source.

This is also useful for adding a profile photo to a CV in PDF format, or replacing a placeholder image in a template.
How to use it
  1. In the top toolbar, click Insert Image.
  2. Select an image file from your device (JPG or PNG).
  3. The image appears on the current page — drag it to position.
  4. Resize using the corner handles, and rotate using the rotate handle above it.
Adding a company logo to a document Inserting a scanned signature image Embedding a chart or diagram from another file

12. Redact Content

12
Redact Content
Security
Redaction covers content with a solid block in the color of your choice — black, white, or any other color you pick, with quick presets for the two most common choices. This is different from drawing a shape over text: the redact tool is purpose-built for this job and keeps the workflow fast when you have several areas to cover.

Use this any time you need to share a document that contains information the recipient isn't supposed to see — personal details, financial figures, confidential clauses, names in a legal filing.
How to use it
  1. In the top toolbar, click Redact.
  2. Pick black, white, or a custom color from the panel.
  3. Click and drag over the content you want to cover.
  4. Download the redacted PDF.
Removing personal data before sharing Redacting confidential clauses in a contract Preparing legal documents for public filing
Always double-check after redacting: After downloading your redacted PDF, open it and try selecting text in the redacted areas. If nothing is selectable, the redaction worked. If you can still highlight or copy text there, use the Redact tool again and re-apply over the same area.

13. Undo / Redo

13
Undo / Redo
Edit Control
Every action you take in the editor — placing text, drawing a shape, adding a signature, highlighting — can be undone. The Undo and Redo buttons sit at the top of the editor toolbar, and the standard keyboard shortcuts work too. This is what makes the editor genuinely usable: you don't have to be careful about every click because nothing is permanent until you download.

Made a mistake? Ctrl+Z. Undid too much? Ctrl+Y brings it back.
How to use it
  1. Click the Undo button at the top of the editor to reverse the last action.
  2. Click Redo to reapply an action you just undid.
  3. Keyboard shortcut: Ctrl+Z (Undo) and Ctrl+Y (Redo) on Windows.
  4. On Mac: Cmd+Z (Undo) and Cmd+Shift+Z (Redo).
Reversing an accidental edit Comparing before/after a change Recovering from a misplaced annotation

14. Smart Alignment Guides (Snap-to-Align)

14
Smart Alignment Guides (Snap-to-Align)
Precision
Borrowed from tools like Word, PowerPoint, and Canva — as you drag a placed text box around the page, it automatically snaps to the left edge, center, or right edge of nearby text, and locks onto the same baseline so multiple lines stay perfectly aligned instead of drifting a few pixels off. It also snaps to the page's horizontal center, which makes centering a heading or title effortless. A pink dashed guide line appears the moment something snaps, giving you clear visual confirmation.

Need to place something freely without any snapping? Just hold Alt while dragging to temporarily turn it off.
How to use it
  1. Place at least two pieces of text on the page using the Text tool.
  2. Click and drag any placed text — as it nears another text's edge, center, or baseline, it snaps into place automatically.
  3. Watch for the pink dashed guide line — that's your cue that an alignment point has been hit.
  4. Hold Alt while dragging if you want to position the text freely, ignoring the snap points.
Lining up form field labels perfectly Centering a heading on the page Keeping multi-line annotations on the same baseline

15. Erase Tool

15
Erase Tool
Cleanup
The Erase tool is different from Redact — it's for undoing something you've already added rather than removing original content from the file. Click directly on a highlight, a freehand stroke, or a piece of text you typed, and that single item is removed instantly. You can also click and drag to paint a white box over any part of the page, useful for quickly covering a small mistake before retyping over it.

It's the fastest way to fix one specific thing without undoing your entire editing session.
How to use it
  1. Click the Erase button in the top toolbar.
  2. Click directly on a highlight, freehand stroke, or piece of added text to remove just that item.
  3. Or click and drag to draw a white box over any area of the page.
  4. Use Undo if you erase the wrong thing.
Removing a single misplaced highlight Cleaning up a stray pen stroke Covering a small mistake before retyping over it

16. Copy, Paste & Duplicate

16
Copy, Paste & Duplicate
Edit Control
Copy and Duplicate buttons in the top toolbar work on both text boxes and shapes. Duplicate does both steps in one click, dropping a copy right next to the original so you can reposition it. Paste is also smart about your system clipboard — text you've copied from another document or webpage can be pasted directly onto the PDF page, not just content copied inside the editor. Right-click anywhere on the canvas for a quick Paste menu too.

Standard keyboard shortcuts work too: Ctrl+C to copy, Ctrl+V to paste, Ctrl+D to duplicate, and Ctrl+A to select all text on the current page.
How to use it
  1. Select a text box or shape you've already placed on the page.
  2. Click Copy in the toolbar (or press Ctrl+C).
  3. Press Ctrl+V to paste, or click Duplicate (Ctrl+D) to do both in one click.
  4. Text copied from outside the editor also pastes directly onto the page with Ctrl+V or right-click → Paste.
Repeating the same label or stamp across a page Quickly duplicating a signature block Pasting text copied from another document

17. Zoom In / Out / Fit to Page

17
Zoom In / Out / Fit to Page
Navigation
Zoom controls let you get closer to the page for precise placement, or pull back to see the full layout, without touching the actual size or position of your edits — zooming is purely a view-level change, from 40% up to 300%. Besides the +/- buttons, you can hold Ctrl (or Cmd on Mac) and scroll your mouse wheel over the page for quick zooming, and reset back to the default view with a single click on "Fit."

This makes a real difference when you're working on dense text, small print, or a high-resolution scanned document where every pixel counts.
How to use it
  1. Use the + / - buttons near the page controls to zoom in or out.
  2. Hold Ctrl (or Cmd on Mac) and scroll your mouse wheel over the page for quick zooming.
  3. Click Fit to reset back to the default 100% view.
  4. Zooming is purely visual — it never changes the position or size of your annotations in the exported PDF.
Zooming in for precise placement on dense or small text Zooming out to see the full page layout at once Working comfortably on high-resolution scanned documents

18. Resize & Rotate Shapes and Images

18
Resize & Rotate Shapes and Images
Edit Control
Once a shape, image, or signature is placed on the page, it isn't fixed in place. Corner and edge handles let you resize it precisely — images and signatures keep their aspect ratio automatically so they never look stretched. A dedicated rotate handle lets you angle it freely, and the [ and ] keys nudge the rotation in clean 5° steps for fine control. A small size panel shows the live width, height, and rotation angle as you adjust, so you always know the exact numbers.

This is especially useful for matching a stamp or signature to a slightly skewed scanned page, or fitting a logo neatly into a tight space.
How to use it
  1. Select a shape or image already placed on the page using the Select tool.
  2. Drag any corner or edge handle to resize it.
  3. Drag the green rotate handle above the shape to rotate it freely, or use the [ and ] keys to rotate in 5° steps.
  4. Check the size panel for the exact width, height, and rotation angle as you adjust.
Fitting a logo neatly into a signature block Rotating a stamp to match a skewed scanned page Resizing a box precisely over a specific area

19. Checkbox & Radio Button Annotations

19
Checkbox & Radio Button Annotations
Add Content
Click once to place a checkbox or radio button anywhere on the page, then click it again any time to toggle it checked or unchecked — it behaves like a real form field, without needing the PDF to have an actual fillable form built into it. This is the fastest way to check off a box on a scanned application form, mark a "Yes/No" choice, or select one option out of several (Male/Female/Other, for example) without drawing a checkmark by hand every time.
How to use it
  1. In the top toolbar, click the Checkbox or Radio button icon.
  2. Click on the PDF where you want to place it — the tool automatically switches to Select mode.
  3. Click the checkbox/radio again any time to toggle it checked or unchecked.
  4. Drag to reposition, just like any other shape.
Checking off boxes on a scanned application form Marking a Yes/No or Male/Female/Other choice Building a simple checklist directly on a PDF

20. Find — Search Text in the PDF

20
Find — Search Text in the PDF
Navigation
Search for any word or phrase across the entire document, not just the page you're currently viewing. Every match is highlighted right on the page, with the current match shown in a different color so it's easy to spot, and a match counter tells you how many results were found. Use the up/down arrows to jump straight to the next or previous occurrence — the editor automatically switches pages for you if the next match is elsewhere in the document.
How to use it
  1. Click the Find (magnifying glass) icon in the top toolbar.
  2. Type the word or phrase you're looking for.
  3. Matches highlight automatically on the page, with a count shown (e.g. "3 of 12").
  4. Use the ↑ / ↓ buttons to jump between matches, including across pages.
Finding a specific clause in a long contract Jumping to every mention of a name or term Checking a large scanned document for a keyword

21. Print with a Custom Page Range

21
Print with a Custom Page Range
Output
Print your edited PDF — including every annotation, stamp, and signature you've added — straight from the editor, without downloading it first. Choose to print the whole document, or a specific page range (say, just pages 3 to 5 of a long report), and your browser's native print dialog opens with everything already in place.
How to use it
  1. Click the Print icon in the top toolbar.
  2. Choose "All Pages" or "Range" and set your from–to page numbers.
  3. Click Print — your browser's print dialog opens with the edited document ready.
Printing just a few pages out of a large document Printing an annotated document without a separate download step Quickly producing a paper copy with your added signature/stamp

22. Add Blank Page

22
Add Blank Page
Add Content
Insert a brand-new blank page into your document at the exact spot you need it, matched to the same page size as the rest of your PDF. Useful for adding a cover page, a blank page for handwritten notes, extra room for a signature block, or simply separating two sections of a combined document.
How to use it
  1. Open the Pages sidebar from the top toolbar.
  2. Click + Add Blank Page.
  3. A new blank page is inserted right after your currently open page.
  4. Use any editing tool to add content to it, just like any other page.
Adding a cover page to a report Inserting extra room for signatures or notes Separating sections of a combined document

23. Line Spacing & Justify Alignment

23
Line Spacing & Justify Alignment
Precision
For multi-line text blocks (Shift+Enter for a new line), you get fine control over how the lines look: adjust the line spacing tighter or looser with the ↕− / ↕+ buttons, and choose Justify alignment (in addition to left/center/right) so paragraph text lines up cleanly on both edges — the same way word processors format body paragraphs.
How to use it
  1. Place a text box and type multiple lines (Shift+Enter for a new line).
  2. In the floating mini toolbar above the text box, click ↕− or ↕+ to adjust line spacing.
  3. Click the ☰ (Justify) button to align the paragraph on both edges.
Formatting a multi-line paragraph added to a document Tightening or loosening spacing on a dense text block Matching the justified look of the surrounding document text

24. Lock / Unlock Shapes and Annotations

24
Lock / Unlock Shapes and Annotations
Edit Control
Once you've got a shape, stamp, or checkbox exactly where you want it, lock it in place so it can't be accidentally moved, resized, or deleted while you keep working on the rest of the page. A locked element shows a small padlock label and a dashed amber outline so it's obvious at a glance, and can be unlocked again with one click whenever you need to adjust it.
How to use it
  1. Select one or more shapes/annotations with the Select tool (Shift+Click for multiple).
  2. In the small floating toolbar that appears, click 🔒 Lock.
  3. Click 🔓 Unlock the same way whenever you need to edit it again.
Protecting a finished stamp/signature from accidental drags Locking a background shape while annotating on top of it Preventing accidental deletion while cleaning up other elements

25. Watermark

25
Watermark
Security
Add a text watermark — like "CONFIDENTIAL," "DRAFT," or your company name — across the entire document or just the current page. Choose the color, font size, opacity, rotation angle, and spacing, and pick between a Tiled layout (repeated in a diagonal grid across the page, the classic watermark look) or a Single centered placement.
How to use it
  1. Click the Watermark icon in the top toolbar.
  2. Type your watermark text.
  3. Choose All Pages or This Page Only, and Tiled or Single layout.
  4. Adjust color, font size, opacity, rotation, and spacing, then click Apply.
Marking a draft copy before it's finalized Adding a "CONFIDENTIAL" watermark before sharing Branding a document with your company name

26. Font & Color Finder

26
Font & Color Finder
Inspector
Ever wondered exactly which font a PDF uses, or the precise color of an element on the page? These two inspector tools answer that instantly. Font Inspector shows the font family, size, and whether it's bold/italic for any text you click — including text you've added yourself. Color Finder samples the exact color under your cursor and shows its HEX and RGB values, with a one-click "Use This Color" button that applies it straight to whichever tool (Text, Draw, Highlight, Shape) you're currently using.
How to use it
  1. Click the Tt (Font Inspector) or eyedropper (Color Finder) icon in the top toolbar.
  2. Click anywhere on the PDF page.
  3. A small card shows the font name/size, or the HEX/RGB color, at that point.
  4. Use "Copy" to copy the value, or "Use This Color" to apply it directly to your active tool.
Matching new text to an existing font in the document Picking up an exact brand color from a logo or header Matching a highlight or shape color to the page design

Frequently Asked Questions

Yes — all features described in this guide are free. No subscription, no trial period, no account required. You can use every feature including redaction, signatures, and stamps without paying anything.
No, unless you add one yourself using the Watermark tool. The downloaded PDF is otherwise completely clean — no QuickPDFOnline branding.
The editor adds content on top of the existing PDF — new text, annotations, shapes, and signatures. Directly modifying the original embedded text in the PDF is a technically different operation (called "text reflow") that requires parsing the PDF's content structure, which most browser-based editors don't support. For replacing existing text, the common workaround is to redact the old text and add new text on top in the same area.
Yes. The editor works in any modern mobile browser. Touch input works well for drawing, freehand, and placing elements. For precise text placement or detailed annotation, a desktop or tablet experience is more comfortable — but for signing, stamping, or adding text, mobile works fine.
Yes — because your file never leaves your device. All processing is client-side, meaning it runs entirely in your browser. No file data is sent to any server. You can verify this by opening your browser's developer tools (F12), going to the Network tab, and watching what happens when you load a PDF — you'll see no file upload requests.
Yes — the Find tool searches the whole document and highlights every match, with up/down arrows to jump between them across pages. See the "Find" section above.
Yes. Click the Print icon in the toolbar, choose all pages or a custom range, and your browser's print dialog opens with all your edits already included.
No, and this is expected behavior rather than a bug. Since nothing is ever uploaded to a server, everything you add lives only in that browser tab's memory until you click "Download PDF" — that's the point at which it's permanently baked into the file. Opening the original file again on another device or browser starts a fresh, empty editing session. If you want your edits to carry over, download the edited PDF first, then open that downloaded file wherever you need it next.

Conclusion

Between adding text, highlighting, drawing, inserting images, signing, stamping, redacting, watermarking, filling in checkboxes, searching text, and fine-tuning placement with alignment guides, zoom, and rotation — the QuickPDFOnline PDF Editor covers the full range of what most people need from a PDF editor in day-to-day work. The fact that it's free, requires no account, and never uploads your files makes it a genuinely better choice than most paid alternatives for the kind of editing tasks this guide covers. Adobe Acrobat is a powerful tool — but for 95% of what people actually do with PDFs, you don't need it.

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