Processed locally, never uploaded
Merge PDF
Combine several PDFs into one file, in the order shown below (drag to reorder).
No files added yet
Split / Extract
Extract page ranges, split every page into its own file, split every N pages, or into equal parts.
No files added yet
Organize pages
Delete, rotate and drag pages right in the thumbnail grid, then export a new PDF.
No files added yet
Image to PDF
Turn JPG / PNG / WebP images into a single PDF, in list order, with optional page size and margin.
No files added yet
PDF to image
Render every page to JPG or PNG. Choose the quality; files download page by page.
No files added yet
Watermark
Stamp a text or image watermark on every page; adjust size, colour, opacity, angle and position.
No files added yet
Protect / Unlock
Set an open password for a PDF, or remove a password you already know. Passwords never leave your device.
No files added yet
Page numbers
Add page numbers in bulk; position, style, first number and font size are all adjustable.
No files added yet
Crop pages
Trim the edges by setting a margin on each side - handy for scanner borders or a consistent page margin.
No files added yet
Extract images
Export the images embedded in a PDF, one file each, named in page order.
No files added yet
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).
No files added yet
Repair PDF
Rebuild a damaged cross-reference table and drop redundant objects so a file that will not open becomes usable again.
No files added yet
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.
No files added yet
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.
No files added yet
Fill forms
Read the form fields already present in a PDF, fill them in and export. Files without fields cannot use this tool.
No files added yet
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.
No files added yet
No files added yet
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.
No files added yet
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.
Combine several PDFs into one file, in the order shown below (drag to reorder).
All processing happens locally in your browser. Your files are never uploaded to any server.
Merging PDFs combines several files into a single document in a chosen order. Whether you need to bundle contract appendices into one complete file, join split chapters of an e-book, or collect multiple scans, this tool does it all in your browser - no software to install and no sign-up.
Pages are copied exactly as they are: nothing is compressed, re-encoded or reflowed, so quality is never lost. Everything stays on your device and no file is ever uploaded, so even contracts and ID scans are safe to combine here.
How to use it
- Click to choose, or drag multiple PDFs onto the dashed box (multi-select works).
- Drag items in the list to set the merge order - the list order is the merge order.
- Change the output file name if you like.
- Click Start, then download the merged file.
Frequently asked questions
- How many PDFs can I merge at once?
- There is no hard limit, but keep the total under about 100 MB - more files mean slower processing. For very large files, split them first.
- Does merging compress or reduce quality?
- No. Merging copies pages as-is; content and resolution stay identical, with no re-encoding or reflow.
- 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