Toolgen.app

Edit PDF

Add text, images, signatures, and drawings to your PDF

What is PDF Editing?

PDF editing allows you to modify existing PDF documents by adding text, images, shapes, or annotations. Essential for filling forms, adding notes, highlighting important sections, stamping documents, or making corrections without recreating the entire PDF from source files.

Our editor lets you make quick changes directly in your browser without installing software—perfect for minor edits, annotations, or adding content to existing PDFs.

How to Edit PDF Files

  1. Upload the PDF file you want to edit
  2. Use toolbar tools to add text, draw, highlight, or insert images
  3. Click and type to add text, or drag to draw shapes and annotations
  4. Save your edited PDF with all changes preserved

PDF Editing Features

✏️ Text Addition

Click anywhere to add text in various fonts and sizes

🖌️ Drawing Tools

Draw lines, shapes, arrows, and freehand annotations

🖍️ Highlighting

Highlight important sections with colored overlays

🖼️ Image Insertion

Add logos, stamps, signatures, or images to pages

Common Use Cases

  • Filling out PDF forms that aren't editable
  • Adding signatures, initials, or stamps to documents
  • Highlighting key passages in contracts or reports for review
  • Adding correction notes or comments to drafts
  • Inserting company logos or watermarks onto existing PDFs
  • Drawing arrows or circles to emphasize specific content
  • Adding dates, page numbers, or additional text to documents

Frequently Asked Questions

Can I edit text that's already in the PDF?

This tool adds new content (text, shapes, images) on top of existing PDFs. It doesn't modify original text. To change existing text, you need full PDF editing software or the source file.

Are edits permanent?

Yes. Once you save the edited PDF, changes are merged into the document. Keep your original PDF separately if you need an unedited copy.

Can I fill out PDF forms with this tool?

Yes. Use the text tool to add content in form fields. This works for both fillable and non-fillable forms. For best results, zoom in for precise placement.

Can I edit multiple pages?

Yes. Navigate between pages using page controls and add edits to any page. All changes are saved when you download the edited PDF.

What fonts can I use?

The editor provides standard web fonts. Choose from various font families, sizes, and colors to match your document's style.

Are my PDFs stored?

No. All editing happens in your browser and files are automatically deleted. We never store or access your documents.

Tips for Best Results

  • Zoom in when adding text to form fields for precise alignment
  • Use contrasting colors for annotations so they're clearly visible
  • Save original PDFs separately before editing
  • Test print one page before printing edited multi-page documents
  • For signatures, consider uploading a signature image for better quality
  • Use the undo function frequently while editing to correct mistakes