How to edit PDFs offline
On a plane, on bad Wi-Fi, or just don't want your files near the internet? pdfSofo keeps working offline once it has been opened.
Open pdfSofoSet it up once
- While online, open pdfsofo.com/app/ once.
- Optional: install it (Install icon in Chrome or Edge, or Share, then Add to Home Screen on iPhone) for an app icon.
- Later, open it without internet; all tools work, because your files were never sent anywhere anyway.
What works offline
- Merge, split, organize, rotate and delete pages
- Compress with the size preview
- Sign, fill forms, add text, crop
- Password-protect
Sharing to other apps works too; sending of course needs a connection.
Free, no watermark, no sign-up, and your file never leaves your device.Open pdfSofo
Questions
Do updates still arrive?
Yes. When you're online, pdfSofo quietly refreshes itself.
Tools for this
Merge PDF filesPut several PDFs and photos together into one document, in exactly the order you want.Organize PDF pagesRearrange pages across several files with drag and drop, and see the finished PDF as you go.
More guides
How to get a PDF under 1 MBForms and job portals often require PDFs under 1 MB. See the exact size of each option before you save, and…How to merge PDFs on iPhoneCombine PDFs and photos into one PDF on your iPhone, right in Safari. No app to install, no upload, and you…How to merge PDFs on a MacTwo easy ways to combine PDFs on a Mac: with Preview, or with pdfSofo in your browser when you also want to…How to merge PDFs on Windows (no install)Combine PDFs on Windows 10 or 11 in Edge or Chrome, with no software to install and no upload. Reorder pages,…