Overview
The share sheet extension is the fastest path through PDF JustFit. A PDF arrives as an email attachment, you tap Share, choose PDF JustFit, and the compressed result comes back — without opening the app to find the file first.
Where it works
- Files
- Safari
- Any other app that offers the iOS share sheet
How it works
- Find the PDF in Mail, Files, Safari or another app.
- Tap Share.
- Choose PDF JustFit from the share sheet.
- Set the target size or choose a preset.
- The result flows back into PDF JustFit automatically.
Why it matters
The share sheet removes the round trip of saving a file, switching apps and finding it again. It is the difference between compressing a document and thinking about compressing a document.
Key facts
- Works from Mail, Files, Safari and other apps
- No need to open PDF JustFit first
- Result returns to PDF JustFit automatically
- Requires the share sheet extension to be added
Available in PDF JustFit: Compress, AI Chat on iPhone and iPad. Requires iOS/iPadOS 26.5 or later. US price $9.99.
Frequently asked questions
Can I compress a PDF from the share sheet?
Yes. The PDF JustFit share sheet extension compresses a PDF straight from Mail, Files, Safari or any other app, and the result flows back into PDF JustFit automatically.
Do I need to open PDF JustFit to use the share sheet extension?
No. Once the share sheet extension has been added, a PDF can be compressed without ever opening the app first.
Sources
Last verified: