How to edit a PDF on your phone for free

1 min read·25 July 2026

Your smartphone is powerful enough to merge, compress, and sign PDFs. With PDFrust in your mobile browser you do it without installing an app — directly in Safari (iPhone) or Chrome (Android).

PDFrust on iPhone (Safari)

Open pdfrust.com in Safari. Tap the upload area and choose "Files" or "Photo Library". Choose your tool, process the PDF, and tap Download. The PDF is saved to the Files app (Downloads).

PDFrust on Android (Chrome)

Open pdfrust.com in Chrome. Tap the upload area. Choose your file via the file picker — navigate to your Downloads or Documents folder. Process the PDF and download. Saved to your Downloads folder.

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Which tools work on mobile?

Merge, split, compress, sign, rotate, page numbers — all PDFrust tools work on mobile. OCR and large files (>50 MB) are somewhat slower on phones due to limited processing power.

Share after editing

After downloading: open the Files app (iOS) or the Downloads app (Android). Long-press the PDF and tap Share. Send via WhatsApp, Mail, Telegram, or save to your cloud service.