Processed locally, never uploaded
Merge PDF
Combine several PDFs into one file, in the order shown below (drag to reorder).
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Split / Extract
Extract page ranges, split every page into its own file, split every N pages, or into equal parts.
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Organize pages
Delete, rotate and drag pages right in the thumbnail grid, then export a new PDF.
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Image to PDF
Turn JPG / PNG / WebP images into a single PDF, in list order, with optional page size and margin.
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PDF to image
Render every page to JPG or PNG. Choose the quality; files download page by page.
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Watermark
Stamp a text or image watermark on every page; adjust size, colour, opacity, angle and position.
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Protect / Unlock
Set an open password for a PDF, or remove a password you already know. Passwords never leave your device.
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Page numbers
Add page numbers in bulk; position, style, first number and font size are all adjustable.
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Crop pages
Trim the edges by setting a margin on each side - handy for scanner borders or a consistent page margin.
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Extract images
Export the images embedded in a PDF, one file each, named in page order.
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Compress PDF
Two ways to shrink a file: rewrite the structure (lossless, limited gain) or rasterise every page (great for scans, but the text stops being selectable).
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Repair PDF
Rebuild a damaged cross-reference table and drop redundant objects so a file that will not open becomes usable again.
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Compare PDF
Compare the text of two PDFs and list every added, removed and changed line. Scans have no text layer and cannot be compared.
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Sign PDF
Draw a signature and place it on a chosen page, with adjustable position and size. This is an image signature, not a digital one.
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Fill forms
Read the form fields already present in a PDF, fill them in and export. Files without fields cannot use this tool.
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Add a PDF and its fillable fields will be listed here.
Overlay / Stamp
Lay one PDF (letterhead, background, stamp page) over your document - behind or in front of the content, with the last page repeating across long files.
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Redact
Cover confidential text and images with boxes or a brush. On export every page is rasterised, so the covered content is permanently removed and cannot be recovered.
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Add a PDF and its pages will appear here for redaction.
This cannot be undone: after export the covered content cannot be recovered by any means.
Rebuild a damaged cross-reference table and drop redundant objects so a file that will not open becomes usable again.
All processing happens locally in your browser. Your files are never uploaded to any server.
Rebuild a damaged cross-reference table and drop redundant objects so a PDF that will not open or keeps erroring becomes usable again. Great for rescuing files from interrupted downloads or crashes.
Repair rebuilds the file structure - it can rescue structural damage but not genuinely missing content. The corrupted file never leaves your device; processing is fully local.
How to use it
- Add the PDF that will not open or reports errors.
- Click Start.
- Download the repaired file and try opening it.
Frequently asked questions
- What kind of damage can be fixed?
- Structural damage (a broken cross-reference table, misplaced objects) can be repaired; content that is actually missing or truncated cannot be recovered.
- Does repair change the page content?
- No. Repair only rebuilds the file structure; text and images stay as they are.
- Are my files uploaded to a server?
- No. Everything runs in your browser and there is no upload endpoint, so the server never sees your content.
- How large a file can I use?
- Stay under about 100 MB and a few thousand pages. Speed and memory depend on your own device.
- Is it free? Do I need an account?
- It is completely free with no usage limit, and no sign-up or login is required.
- Does it work on phones?
- Yes, the layout is responsive. Large files and complex edits are easier on a desktop.
- Which browsers are supported?
- Any modern browser: Chrome, Edge, Firefox, Safari and their mobile versions.
- Does it work with scanned PDFs?
- Yes for page-level operations, which do not need a text layer. There is no OCR, so text cannot be pulled out of a scan.
Client-side only · No sign-up · Local processing · Files never uploaded