Document Desk
Merge, split, compress, sign, and tidy up paperwork — nothing ever leaves your browser.
Document tools that never touch a server
Nearly everyone deals with the same handful of paperwork tasks sooner or later: combining a few scanned pages into one file, shrinking a PDF that's too large to email, splitting one document into individual pages, or signing something without a printer nearby. Document Desk brings together nine tools for exactly this kind of everyday paperwork — and every one of them runs entirely inside your own browser, rather than uploading your file to a server the way most free document tools do.
That distinction matters more than it might seem at first. A typical online PDF merger or compressor sends your file to a remote server, processes it there, and sends back a result — meaning your document, even if briefly, exists on a computer you have no control over. Document Desk's tools skip that step entirely. PDF merging and splitting happen through an open-source library called pdf-lib running directly in your browser; compression works by re-rendering pages locally using pdf.js; even the e-signature pad draws directly onto a canvas element built into your browser, with the resulting image never uploaded anywhere. The net effect: no waiting on an upload, no file size limit imposed by a server, and nothing of yours ever sitting somewhere else after you're done.
This also means there's no daily cap on how many times you can use any of these tools, no watermark added to your output, and no account required to get started — open a tool and it's ready the moment the page loads. Whether you're a freelancer combining a signed contract's scattered pages, a student merging group project sections, or anyone just trying to shrink a PDF enough to email it, these tools are built to handle it in one sitting, without friction.
Each tool below has its own dedicated page with full instructions, format details, and answers to common questions — click through to any of them to get started.
Every tool in this category
PDF Merger
Combine multiple PDFs into one, in order.
PDF Splitter
Break a large PDF into single-page files.
Image → PDF
Turn scans into one clean, print-ready PDF.
Word Counter
Instant word, character & reading-time count.
E-Signature Pad
Draw a signature, export as transparent PNG.
File Archiver
Zip up several files into one archive.
PDF Compressor
Shrink a PDF by re-rendering pages as images.
PDF Watermarker
Stamp a diagonal text watermark on every page.
CSV ⇄ JSON Converter
Convert spreadsheet data to JSON, or back.