How to Edit PDF Free — The Complete Guide to Adding Text, Deleting Content, Drawing, and More

Need to add text to a PDF? Delete a paragraph? Draw an arrow pointing to something? Insert your company logo? Most people think you need expensive software like Adobe Acrobat ($240/year) to do this.

You don't. This guide shows you how to do every type of PDF edit for free — directly in your browser, without uploading your file to any server.

What Can You Actually Edit in a PDF?

Our free editor includes 11 tools, 3 text formatting options, and full zoom/undo support. Here's everything you can do:

Step 1: Add Text to Your PDF

This is the most common PDF edit. Here's exactly how to do it:

1. Open the PDF Editor and drop your PDF file into the upload zone.
2. Press T on your keyboard (or click the 📝 Text button in the toolbar).
3. Click anywhere on the PDF where you want the text to appear. An inline text box opens right at that spot.
4. Type your text. Press Shift+Enter for a new line.
5. Press Enter to confirm (or click the ✓ Add button).

Formatting Your Text

Before placing text, you can set:

Editing Text You Already Placed

Made a typo? No need to delete and retype. Double-click any text annotation to reopen it for editing. Change the text, font size, color, or bold/italic/underline — then press Enter to save.

Step 2: Delete or Erase Existing Content

This is where most free PDF editors fail. They let you add content but not remove it. Our editor gives you three ways to delete:

Method A: White-Out (Best for Blocks of Text)

Use this when you need to erase a paragraph, a section, or a large area.

1. Press W (or click ⬜ White-Out).
2. Click and drag to draw a white rectangle over the content you want to remove.
3. The content underneath is covered by a solid white box.
4. When you save, this white box is permanently burned into the PDF — the original content is gone.

Method B: Eraser Brush (Best for Individual Words)

Use this when you need to erase a single word or a small piece of text — more precise than white-out.

1. Press E (or click 🧹 Eraser).
2. An Eraser size slider appears in the toolbar (5px to 80px). Set the size to match what you're erasing.
3. Paint over the text you want to remove — just like using an eraser on paper.
4. The eraser paints white over the content, following your brush stroke.

Method C: Delete Your Own Annotations

Need to remove something you added (text, shape, image)? Three ways:

• Right-click the annotation — instantly deleted.
• Select it (press V, click it) → press Delete key.
• Select it → click the 🗑 Delete button in the toolbar.

Made a mistake? Press Ctrl+Z to undo. Ctrl+Y to redo. You get up to 50 undo levels.

Step 3: Draw Shapes and Annotations

Shapes are essential for marking up documents — circling important sections, drawing arrows to highlight changes, or adding boxes around key information.

Every shape respects your current color, stroke width (1-20px), and opacity settings. Set these in the toolbar before drawing.

Step 4: Insert Images, Logos, and Stamps

Need to add your company logo? A "DRAFT" stamp? A photo? Here's how:

1. Press I (or click 🖼️ Image).
2. Choose an image file (JPG, PNG, WebP, etc.).
3. Click on the PDF where you want it. The image is placed and auto-selected.
4. Drag the corner handles to resize the image to the perfect size.
5. Drag the center to reposition it.

Step 5: Highlight Important Sections

Press H and drag over any area to highlight it with a semi-transparent color overlay. This is perfect for:

• Marking important clauses in contracts
• Highlighting key data in reports
• Color-coding different sections for review

Change the color and opacity before highlighting. The default is 30% opacity — visible but not overpowering.

Moving, Resizing, and Repositioning

Everything you add can be moved and adjusted after placement:

When you hover over an annotation in Select mode, it shows a dashed purple border and the cursor changes to a grab hand — so you always know what you're about to select.

Zoom for Precision Editing

The zoom bar lets you zoom in for pixel-perfect edits:

• + / − buttons zoom in 25% increments
• Fit button auto-zooms to fit the page width
• Zoom range: 50% to 400%

Zoom in to 200-300% when aligning text with existing content or making fine corrections. Zoom out to see the full page when adding large elements.

Complete Keyboard Shortcuts Reference

Saving Your Edited PDF

When you're done editing:

1. Click 💾 Save Edited PDF at the bottom.
2. The editor renders all your annotations at 2x resolution for maximum quality.
3. A progress bar shows the rendering status for each page.
4. Your edited PDF downloads automatically.

All edits are permanently embedded in the PDF. The original text you white-outed is gone. Shapes, text, and images are burned into the pages. The recipient sees a clean document — not editable annotations.

Privacy: Your Files Never Leave Your Computer

Unlike SmallPDF, iLovePDF, and every other online PDF editor, AllPDF.tools processes everything in your browser. Your PDF is never uploaded to any server. This means:

• No data breaches — your file never touches the internet
• Works offline — once loaded, you don't need an internet connection
• No file size limits — it's your computer doing the processing
• GDPR compliant by design — no data to protect if no data is collected

This matters especially when editing contracts, medical records, financial documents, legal papers, or any file with personal information.

What You Can't Do (And What to Use Instead)

Our editor is powerful, but honest about its limits:

Frequently Asked Questions

Is it really free? No hidden limits?

Yes. No daily limits, no file size caps, no watermarks on output, no account required. We're free because your browser does all the processing — we don't pay for servers.

Can I edit a scanned PDF?

You can draw, highlight, and add text on top of scanned PDFs. But you can't edit the scanned text itself — that would require OCR (Optical Character Recognition), which we don't currently support. You can use the PDF to Text tool to extract what text is available.

Will the edited PDF look the same on someone else's computer?

Yes. When you save, all edits are rendered as images embedded in the PDF. This means your edits appear identically on every device and PDF reader — no font compatibility issues.

Can I edit the same PDF multiple times?

Yes. Open the previously saved PDF, add more edits, and save again. Each save creates a new file — the original is never modified.

Does it work on my phone?

Yes. The editor supports touch input — draw with your finger, tap to place text, pinch to zoom. All tools work on mobile.