Merge, split, convert and edit your PDFs and files in seconds. Nothing uploads to a server — your documents never leave this tab.
Rearrange, split apart, or bring pages together.
Move content between PDF, images, Word and text.
Resize, convert, and fit images to the pixels you actually need.
Mark up, number, and shrink your files.
Files are processed on your device using JavaScript. Nothing is uploaded anywhere.
Every tool opens instantly and runs the moment you drop a file in.
All fifteen tools are free, with no page limits or watermarked output.
No accounts, no queues, no server round-trip.
Click any card above — merging, converting, and editing each open their own small workspace with just the options that tool needs.
Drag a file onto the panel or click to browse. The moment it lands, PaperStamp reads it right there in your browser tab.
Press the button. A JavaScript library built for that exact job — PDF-Lib for page operations, pdf.js for rendering, jsPDF for building new PDFs — does the work on your machine.
Your finished file is handed straight back to you. It was never sent anywhere in between, so there's nothing sitting on a server afterward either.
That last point is the whole design philosophy here: the file you upload is read by code running on your own device, the same way a photo editor or a calculator works offline. When you close the tab, nothing of yours remains anywhere but your own downloads folder.
The things that come up before someone trusts a tool with their files.
It uses the standard formula printers and photo labs use: pixels = physical size × DPI. A 4×6 inch photo at 300 DPI (a typical print resolution) comes out to 1200×1800 pixels, for example. If you're not sure what DPI to use, 300 is the safe default for anything going to print; 72 or 96 is more typical for on-screen use only.
It's a technical fact, not a promise: every tool on this page runs using JavaScript libraries loaded into your browser (PDF-Lib, pdf.js, jsPDF, and a couple of others depending on the tool). Your file is read into your browser's memory and processed there. Open your browser's network tab while using any tool and you'll see your document never appears in a request — there's simply no server on the other end waiting for it. The only network activity is the one-time download of the code libraries themselves the first time you load the page.
Pick "visual match" if you just need the file to look right — it renders each page as a high-resolution image and drops it into a Word file, so opened in Word it looks exactly like the original PDF, though you can't select or edit the words. Pick "editable text" if you need to actually rewrite the content — it pulls the real text out and does its best to carry over headings and bold text, but exact spacing, columns, and fonts won't match the original. There's no version that's both perfectly editable and pixel-identical to the source; that would require rebuilding the document's full layout engine, which genuinely isn't possible from inside a browser tab.
That's intentional, and it's what makes the output good. Rather than taking a screenshot of your document and calling it a PDF, Word to PDF hands your document to your browser's own built-in PDF engine — the same one behind every "Print → Save as PDF" you've ever done. Choosing "Save as PDF" in that dialog gives you a real PDF with sharp, selectable text and accurate pagination, not a flattened image.
Compress PDF rebuilds the file's internal structure, which helps most with PDFs that have accumulated bloat from repeated saves or unused embedded data. It doesn't currently re-encode the images inside your PDF, which is where the biggest size savings usually live in image-heavy files. If your PDF is mostly scanned pages or photos, you'll see less of a reduction than on a text-heavy report.
Only the limit of your own device's memory, since everything happens there rather than on a server with a fixed upload cap. In practice, very large files (several hundred pages, or PDFs stuffed with high-resolution scans) will process more slowly on an older phone or laptop than a desktop with more RAM.
No. Every tool works the moment the page finishes loading. There's no sign-up, no email capture, and no software to install — it's a website, not an app.
Any current version of Chrome, Firefox, Edge, or Safari. The tools rely on standard browser features (File API, Canvas), so very old browser versions may not support everything, but you won't need to check version numbers — if a tool can't run, it will tell you rather than fail silently.