Freelancers & small teams
Stamp invoices PAID, merge proposals with appendices, and sign simple agreements without another monthly SaaS bill.
Add your signature or company stamp, merge, split, rotate, and watermark PDFs. No signup, no software, and your PDFs never leave your device.
One free toolbox for everyday PDF jobs — all private, all in your browser.
Stamp, merge, split, rotate, watermark — choose what you need. No account, no install.
Your PDF opens instantly. It is processed on your own device and never uploaded anywhere.
Get your finished PDF in seconds. No watermarks added, no page limits, no paywall.
Most online PDF services upload your file to their servers to process it. StampAPDF is different: the work happens inside your browser using modern web technology. Contracts, invoices, and ID documents stay exactly where they belong — with you.
PDF processing happens on your device. An image you choose to save in the reusable stamp library is uploaded and stored separately; you can delete it from the library. Read the full explanation in Are online PDF tools safe?.
Not a full publishing suite — a focused toolbox for the tasks people actually open a browser tab to finish.
Stamp invoices PAID, merge proposals with appendices, and sign simple agreements without another monthly SaaS bill.
Combine transcripts, certificates, and forms into one ordered PDF, or turn phone photos of paperwork into a clean attachment.
When the document is a contract, bank letter, or ID scan, local browser processing means you are not parking a copy on a random converter.
Step-by-step articles for signing, merging, extracting pages, watermarking, and choosing tools that do not upload your files.
Build a reusable PAID stamp and mark an invoice settled in seconds.
Download transparent red, blue, or black stamps for invoices.
Combine files in the right order without a server upload.
Send only the pages the recipient asked for.
DRAFT or CONFIDENTIAL across every page.
A checklist before you open a sensitive file on any site.
More background on the about page.
Yes — every tool is completely free with no page limits, no trial, and no watermarks added to your files. The site is supported by ads.
No. All PDF processing happens locally in your browser using JavaScript. Your documents never leave your device, which makes StampAPDF a good fit for contracts, invoices, and other sensitive files. Only the signature/stamp images you choose to save in your library are stored, so they're available next time.
Open the Stamp & Sign tool, choose your PDF, add your signature image to the library once, then click where you want it on the page. Drag to move, resize with the corner handle, and download the signed PDF.
No signup is needed for any tool. You can save signature and stamp images to a library so they're ready to reuse on your next document.
Yes — everything runs in a normal web browser on Windows, Mac, Linux, Android, and iPhone. No app to install.
StampAPDF processes PDF documents locally in your browser, with no signup or daily task limits. Stamp and signature images you choose to save to the reusable library are uploaded separately. When comparing tools, check where they process documents, what they store, and which features or limits apply to your task.
Stamp and sign, generate a signature image, merge, split or extract pages, rotate, watermark, add page numbers, convert JPG to PDF, and convert PDF pages to JPG. For longer walkthroughs, see the Guides section.
Many everyday agreements accept a clear visual electronic signature, but rules depend on the document, jurisdiction, and the recipient. An image is not the same as a certificate-based digital signature. When a bank, court, or contract specifies a method, follow that method.
Free forever. No signup. Your next signed document is 30 seconds away.
Start stamping — free