Free PDF tools that never upload your file

Most online PDF sites upload your document to their server, process it there, and ask you to trust that they delete it afterwards. These tools work differently: the PDF is opened by JavaScript inside your browser tab, modified in memory, and handed straight back to you as a download. There is no upload step, so contracts, payslips and ID scans never leave your machine.

The tools are built on two well-established open-source libraries — pdf-lib for editing and Mozilla's pdf.js for rendering — which your browser downloads from cdnjs the first time you use a PDF tool. After that, the processing happens locally.

Combine, split and reorder

Change which pages are in a document and in what order.

Merge PDFCombine multiple PDFs into one file, in the order you choose. Processed on your device.On-device Split PDF / Extract PagesPull out a page range into a new PDF, or split every page into its own file.On-device PDF Page OrganizerSee page thumbnails, then drag to reorder, delete, duplicate or rotate pages and save a new PDF.On-device Rotate PDFRotate all pages or a range by 90°, 180°, or 270° and download the fixed file.On-device Crop PDFTrim page margins in mm or %, preview the crop live, and apply it to every page or just a range.On-device

Convert

Move between PDF, images and plain text.

Images to PDF (JPG, PNG, WebP)Turn JPG, PNG, or WebP images into a single PDF — one image per page, reorderable.On-device PDF to Images (JPG / PNG)Render each PDF page as a PNG or JPG and download them in one ZIP.On-device Extract Text from PDFPull the selectable text out of a PDF, page by page, with a .txt download.On-device

Sign, stamp and annotate

Add content on top of existing pages.

Sign PDFDraw your signature and place it on any page — processed entirely on your device.On-device Add Watermark to PDFStamp a diagonal text watermark like CONFIDENTIAL or DRAFT across every page.On-device Add Page Numbers to PDFNumber every page — pick the corner, the format (1, Page 1, 1 / 12) and the start value.On-device PDF Metadata EditorRead and change a PDF's title, author, keywords and dates, or remove the document metadata entirely.On-device

Good to know

Large files

Because everything runs in memory, the practical limit is your device's RAM rather than a server quota. Documents of a few hundred pages work on a typical laptop; phones may struggle with very large scans.

Encrypted PDFs

Password-protected PDFs cannot be edited until the protection is removed in the program that created them. The tools tell you when a file is encrypted rather than producing a broken output.

What these tools do not do

There is no OCR, no Word conversion and no compression yet. Those are hard to do well in a browser, so they are not offered until they can be done properly.

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