A complete office
Six apps for every file on your desk: PDFs, Word and Excel files, slides, photos and scans.
Free · Open source · macOS and Windows
Your whole office. No subscription.
OFF42 brings together six native apps for macOS and Windows: PDFs, documents, spreadsheets, presentations, images and scans. Free and open source, with separate platform implementations and documented limitations.
Free · Open source · macOS 14+ · Windows
✳PDF · DOC · XLS
IMG · PPT · SCN42
IMG · PPT · SCN42
6apps in one suite
25+file formats
20interface languages
0subscriptions
0uploads of your files
WHAT'S IN A NAME
OFF is for office. And for everything you can switch off.
Works offline
Editing runs locally on your computer. No account or file uploads.
Subscriptions: off
No subscription, no trial period, no ads. MIT-licensed and free, today and tomorrow.
SIGNATURES AND STAMPS
Sign and stamp like on paper. No printer, no scanner.
Add images of your own signature and stamp to your document.
- Signatures in ballpoint, gel, fountain or felt-tip ink
- 132 stamp styles: round seals, company stamps, “Paid” and “Received”
- Learns your own signature from a few samples
- Works in PDFs, documents, slides, spreadsheets, images and scans
A drawn signature is not a certificate-based digital signature. When you need one, PDF42 signs with your certificate.
PDF signatures
SEE IT AT WORK
Real apps. Real documents.
Every picture here is a screenshot of OFF42 on a Mac, with sample documents of fictional companies opened in the apps. No mock-ups.
Screenshot on macOS. Sample documents, fictional companies.
OFF42 / 06
A whole office. A lighter feeling.
From the first rough draft to the final signed PDF, keep your everyday work in one familiar family of tools.
PDF42
Read, annotate, organise, compress and sign your PDFs.
DOC42
Write and lay out documents in DOCX, ODT, RTF and Markdown.
XLS42
Work with spreadsheets, formulas and charts in XLSX, ODS and CSV.
PPT42
Build slides, work with tables and shapes, and present your story.
IMG42
View, crop, resize, annotate and adjust your images.
SCN42
Scan, clean up pages and recognise text with on-device OCR.
OFFICE AND OPEN FORMATS
Works with the files you already have.
Open what colleagues send you and save in the format they expect. Complex layouts can look different, so check important files after import.
OpensSaves
SMALL DETAILS. BIG DIFFERENCE.
More possibilities in every file.
Edit a PDF. Tame a large attachment. Turn a paper page into searchable text. Find the tool for the job.
01
PDF editing
Make the PDF your working document. Edit page text, add notes, highlight the important parts, fill forms and put pages in the right order with PDF42.
02
PDF compression
Make image-heavy PDFs easier to share. PDF42 offers compression controls so you can choose a practical balance between file size and image detail.
03
PDF signatures
Keep signatures and stamps close to your work. Add a visual signature, reuse a stamp or work with certificate-based digital signatures in PDF42.
04
Scanning & OCR
Bring paper into your digital office with SCN42. Acquire pages, straighten and clean them up, then recognise text on your Mac.
Made for local work
Your desk. Not someone else's server.
Core editing runs locally on your computer without uploading files. Optional online features need a connection; availability varies by platform.
Privacy20 / 20
A familiar voice, in 20 languages.
The website and app interface speak your language. Choose yours and keep the same tools close at hand.
Open source / MIT
An open office, in every sense.
OFF42 is released under the MIT license. Read the code, build it yourself, report a bug or help make the next version better.
Explore on GitHubQuestions before you start
Is OFF42 free?
Yes. OFF42 is free and open source under the MIT license. There are no subscriptions, accounts or in-app purchases.
Does OFF42 work offline?
Core editing runs locally on your computer without uploading files. Optional online features need a connection; availability varies by platform.
Can OFF42 open Microsoft Office files?
Yes. DOC42 opens DOCX and DOC, XLS42 opens XLSX and XLS, and PPT42 opens PPTX. OpenDocument files (ODT, ODS, ODP) are supported too. Not every Office feature is supported, so check complex files after import.
Which Macs does OFF42 support?
A preview DMG is available for Apple Silicon Macs running macOS 14 or later.
Is there a Windows version?
Preview with all six apps. Extract the entire ZIP, then launch the app you want. Includes tools for labels and barcodes.
Switch the subscriptions off. Keep the office.
Free · Open source · macOS and Windows