PDF Toolkit

What this is

An online toolbox with seventeen everyday PDF operations, grouped on the left by what you are trying to do: Pages & documents (merge, split & extract, organise, page numbers, crop), Format & size (images to PDF, PDF to images, extract images, compress), Edit & sign (watermark, sign, fill forms, compare, overlay & stamp) and Secure & repair (password protect, repair, redact). Pick a tool, drop in your file, tweak a few options and you are done — no install, no sign-up.

Everything runs in your own browser. There is no upload endpoint, so your files never leave this device — safe for contracts, ID scans and internal documents.

Features

• Merge PDFCombine several PDFs into one file, in the order shown below (drag to reorder).
• Split / ExtractExtract page ranges, split every page into its own file, split every N pages, or into equal parts.
• Organize pagesDelete, rotate and drag pages right in the thumbnail grid, then export a new PDF.
• Page numbersAdd page numbers in bulk; position, style, first number and font size are all adjustable.
• Crop pagesTrim the edges by setting a margin on each side - handy for scanner borders or a consistent page margin.
• Image to PDFTurn JPG / PNG / WebP images into a single PDF, in list order, with optional page size and margin.
• PDF to imageRender every page to JPG or PNG. Choose the quality; files download page by page.
• Extract imagesExport the images embedded in a PDF, one file each, named in page order.
• Compress PDFTwo ways to shrink a file: rewrite the structure (lossless, limited gain) or rasterise every page (great for scans, but the text stops being selectable).
• WatermarkStamp a text or image watermark on every page; adjust size, colour, opacity, angle and position.
• Sign PDFDraw a signature and place it on a chosen page, with adjustable position and size. This is an image signature, not a digital one.
• Fill formsRead the form fields already present in a PDF, fill them in and export. Files without fields cannot use this tool.
• Compare PDFCompare the text of two PDFs and list every added, removed and changed line. Scans have no text layer and cannot be compared.
• Overlay / StampLay one PDF (letterhead, background, stamp page) over your document - behind or in front of the content, with the last page repeating across long files.
• Protect / UnlockSet an open password for a PDF, or remove a password you already know. Passwords never leave your device.
• Repair PDFRebuild a damaged cross-reference table and drop redundant objects so a file that will not open becomes usable again.
• RedactCover 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.

How to use

1. Pick a tool from the list on the left (say, “Merge PDF”); it opens in the panel on the right.
2. Drop files onto the dashed box or click to choose them; drag to reorder when there are several.
3. Adjust the options shown (page ranges, page size, watermark text, …).
4. Click “Start”, then “Download” to save the result.

FAQ

Are my files uploaded to a server?

No. Merging, splitting, converting, watermarking and page numbering all happen in the browser, and encryption runs on a local engine. 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, and larger files are slower; split huge scans first.

What if I forget the password I set?

It cannot be recovered. The password is used only on your machine — we do not store it and cannot restore it. Keep it safe, or save an unencrypted copy.

Does it work with scanned / image-only PDFs?

Yes. Merging, splitting, organising, watermarking, numbering and image export all work per page and do not need a text layer. This tool does not do OCR, though, so it cannot pull text out of a scan.

Does it work on phones?

Yes, the layout is responsive. Dragging and thumbnail editing are easier with a mouse, and large files are heavier, so use a desktop for complex jobs.

Client-side only · No sign-up · Local processing · Files never uploaded