Folio
Scanning
Tips for a Perfect Document Scan: Light, Angle, Filters
Get cleaner phone scans with five habits: soft light, a square angle, a plain background, flat paper and the right filter. Plus a quick fix list for problems.
Folio blog
The Folio blog
Plain-English guides on scanning documents, signing and editing PDFs on your phone, and keeping sensitive paperwork private.
Signing
How to Sign a PDF on Your Phone Without Uploading It
Sign a PDF on Android by drawing, typing or photographing your signature, place it on the page and save a signed copy, without uploading the document.
Scanning
How to Scan Documents to PDF on Android, Step by Step
A step-by-step guide to scanning paper to a clean PDF on Android: check the crop, pick a filter and create a PDF without uploading anything.
Privacy
Offline vs Cloud Document Scanners: A Privacy Guide
Scanning IDs, bank statements or contracts? See how offline and cloud scanner apps differ, what to check first and how to keep sensitive papers private.
PDF tools
How to Merge and Split PDFs on Android, Step by Step
Combine PDFs into one, split a long PDF, extract the pages you need and shrink the file on Android. A practical guide that runs on your phone, no upload.
OCR
How to Extract Text from a Scanned Document on Android
Turn a scan into text you can copy, share and search. This guide covers on-device OCR on Android, getting accurate results and making a searchable PDF.