Guides

Plain-English how-tos for the paperwork everyone has to deal with.

How to sign a PDF on your phone (iPhone or Android)Sign a PDF with your finger on an iPhone or Android phone in about a minute, without printing or installing an app.4 min read How to fill out a PDF form without printing itType into fillable PDF forms, handle forms that aren’t fillable, and save a clean copy, all without a printer.4 min read How to edit text in a PDF (and when you can’t)What it really means to edit text in a PDF, how to change a word or a date cleanly, and what to do with scanned PDFs.5 min read Redaction vs. white-out: how to hide private details in a PDF safelyWhy a black box isn’t enough to hide text in a PDF, and how to permanently remove account numbers, addresses and other private details.4 min read How to make a PDF smaller for emailWhy PDFs get huge, how much smaller you can make them, and how to get under email and upload limits without ruining quality.4 min read How to combine photos and PDFs into one fileTurn several phone photos or PDFs into one tidy PDF: the right order, the right way up, and small enough to send.3 min read