PDF tools · in the Stamppa PDF viewer and editor
Merge and split PDFs offline.
Combine PDFs and images into one file, in the order you set, or cut a long PDF into parts. Every tool writes new files and leaves your originals as they were.
Installs on Windows 10/11 and Mac (Apple Silicon). Send yourself the link.
Free for 14 days with every feature, just your email, no card. If you don’t buy, it stays a free PDF viewer.
Why do it in Stamppa
Your files never leave your computer
Stamppa is a fast PDF viewer and editor for Windows and Mac. It works offline and never uploads your documents: it connects only to confirm your license. Online PDF sites ask you to upload the file first; here it stays on your disk.
It’s at its best with construction drawings: measure to scale, compare revisions and batch stamp whole sets.
Works offline
On a plane, on site or behind a strict firewall, the tools work the same.
Nothing is uploaded
No cloud and no telemetry. Contracts, IDs and drawings stay with you.
Windows and Mac
One app on Windows 10/11 and on Mac (Apple Silicon), in English and Spanish.
How it works
Open PDF Tools, add the files, run
Open PDF Tools
Tools ▸ PDF Tools (Ctrl+Shift+P on Windows), then the Merge or Split card. Type “merge” or “split” to find it.
Add your files and set the order
Drop in the PDFs and images and drag them into order. For Split, choose how to cut: every N pages, by ranges, by size or by bookmarks.
Run it
Stamppa writes the new files next to the originals, or in the folder you choose. Nothing is overwritten.
What it does
Put pages together, or take them apart
Merge PDFs and images
PDFs, JPG, PNG and more into one PDF, in the order you set.
Split five ways
Every N pages, by page ranges, by file size, by bookmarks or by sheet number.
Originals untouched
Every tool writes new files. If a name is taken, Stamppa adds a number instead of overwriting.
Insert and extract pages
In an open PDF: Pages ▸ Insert ▸ Pages from file… and Pages ▸ Extract pages….
Chained batch actions
Save a chain of tools, such as merge, number and compress, and run it on many files with one click.
More in the same window
Page numbers and Bates numbering, watermarks, protect with a password, flatten, PDF/A.
What it costs
Every tool in every plan
Pay once a year and Stamppa 27 is yours forever, with every 27.x update, including the ones released after you cancel. It renews at your same price. There is a monthly plan too: after 12 months paid in a row, that day’s version is yours.
Prices in US$, excluding tax.Prices in euros, VAT included.Prices in pounds, VAT included.Prices in Swiss francs, VAT included.
Founder price · first 100 customers
Free for 14 days with every feature, just your email, no card.
Common questions
Ask Gus anything elseHow do I combine PDF files into one?
Open Tools ▸ PDF Tools, choose Merge, drop in your PDFs (images work too), drag them into the order you want and run it. You get one new PDF; the originals stay as they were.
How can I split a PDF into several files?
Choose Split in PDF Tools and pick how to cut it: every N pages, by page ranges, by file size, by bookmarks or by sheet number. Each part is saved as its own PDF.
Is there a limit on file size or number of files?
Stamppa sets no upload limit because nothing is uploaded: it works with the files on your disk. Very large sets take longer, the same as any program working on your own computer.
Is my PDF uploaded anywhere?
No. Stamppa works on your computer and never sends your documents. It connects only to confirm your license, when it opens and when you sign in, renew or change computer.
Is it free?
Without a license Stamppa is a free PDF viewer: view, search, print, notes, highlights and clouds. This tool is part of the paid plans, and every plan has every tool. Try them all free for 14 days with just your email.
Merge your next PDFs in Stamppa
Free for 14 days with every tool. Start with the files you have to send as one.
Windows 10/11 · macOS (Apple Silicon)