Edit PDF Files Online for Free
Need to add text to a PDF, drop in a signature, insert an image, or annotate a document? Our free online PDF editor lets you make changes directly in your browser — no software to install, no account to create, and your files never leave your device.
Every edit is reversible with unlimited undo/redo, and your exported PDF preserves the original text layer so it stays fully searchable.
What You Can Do
- Add searchable text — insert notes, labels, or corrections without flattening the original text layer.
- Insert images and logos — paste watermarks, stamps, signatures, or photos and resize them freely.
- Per-page editing — each page has its own canvas and undo/redo history.
- Export with confidence — if your original PDF was searchable, the edited version stays searchable too.
How to Edit a PDF in 4 Steps
- Upload your PDF — drag and drop or use the file picker.
- Edit visually — click "Add text" or "Add image," move items where you need them, and adjust colors, sizes, and positions.
- Navigate pages — switch between pages; each keeps its own change history.
- Export — the tool merges your overlays with the original PDF structure so selectable text stays intact.
Why Use an Online PDF Editor?
Quick Edits Without Desktop Software
Don't want to install Adobe Acrobat or other heavyweight editors for a simple change? Our browser-based editor handles common tasks — adding text, images, and annotations — instantly.
Sign Documents Without Printing
Add your signature as an image overlay instead of printing, signing by hand, and scanning back to PDF.
Annotate and Comment
Mark up contracts, proposals, or academic papers with text notes and visual highlights directly on the page.
Add Watermarks or Logos
Place a company logo, "CONFIDENTIAL" stamp, or custom watermark on every page of a document.
Fill in PDF Forms Manually
For PDFs without interactive form fields, use the text tool to type directly where you need to fill in information.
Key Features
- 100% Private — all rendering, editing, and exporting runs client-side using WebAssembly and pdf-lib. Nothing is uploaded to any server.
- Searchable Text Preserved — your edits are layered on top of the original content, so existing text remains selectable and searchable.
- Unlimited Undo/Redo — reverse any change instantly. Each page maintains its own history.
- No Watermarks — your edited PDF comes out clean and professional.
- Works on Any Device — Windows, Mac, Linux, and mobile browsers. No app install needed.
- Free to Use — no subscriptions, no trial limits, no feature gating.
Common Use Cases
Add a Signature to a PDF
Upload your signature as an image and place it on contracts, agreements, or letters without printing.
Insert Text Into a PDF
Add missing information, notes, or corrections to an existing document.
Add Images to a PDF
Drop logos, photos, stamps, or diagrams onto any page and position them exactly where you want.
Annotate PDFs for Review
Mark up documents with comments, labels, or highlights for team review or personal reference.
Prepare PDFs for Submission
Fill in required fields, add dates, or insert reference numbers before submitting documents to portals or via email.
Frequently Asked Questions
Will editing change the original text in my PDF? No. The editor adds your new text and images as overlays on top of the existing content. The original text layer is preserved and stays searchable.
Can I edit the existing text in a PDF? This tool is designed for adding new content (text, images, annotations) to a PDF. It doesn't modify existing text within the document.
Does this work for scanned PDFs? Yes. You can add text and images on top of scanned pages. If you need the scanned text to be searchable, run OCR first and then edit.
Is this a free alternative to Adobe Acrobat? For adding text, images, and annotations — yes. Fileverter provides these common editing features completely free, with no subscription required.
Are my files secure? Absolutely. All editing happens in your browser. Your PDF is never uploaded to any server.
Can I undo a mistake? Yes. Every page has unlimited undo/redo history. Use Ctrl+Z (or Cmd+Z on Mac) to reverse any change.
What file format is the output? The tool exports a standard PDF file that works in any PDF reader.
Tips for Best Results
- Keep fonts consistent with the document by using Helvetica/Arial style text blocks.
- For scanned PDFs, run OCR first if you need searchable text.
- Use undo (Ctrl/Cmd + Z) immediately if you misplace an element — history is unlimited per page.
- Add images at a reasonable resolution to keep the exported file size manageable.