Guides

How to sign, fill out, combine and shrink PDFs on your iPhone, with the apps you already have or with Udfyld.

• How to sign a PDF on iPhone

  Sign a PDF on your iPhone with your finger: the built-in way in Files, a quicker way with the Udfyld app, and when a drawn signature isn't enough.

• How to fill out a PDF on iPhone

  Fill out a PDF form on iPhone for free: type into the fields in Files, what to do when you can't type in the PDF, and how the recipient sees your text.

• How to convert photos to PDF on iPhone

  Turn one or more photos into a single PDF on iPhone for free: with Create PDF in the Files app, or straight from your photo library with the Udfyld app.

• How to compress a PDF on iPhone

  Make a PDF smaller on iPhone without uploading it: export it with smaller images in Preview, shrink scans with Udfyld, or send it with Mail Drop.

• How to combine PDF files on iPhone

  Combine several PDFs into one file on iPhone for free: with Create PDF in the Files app, or in the order you want with the Udfyld app. Nothing is uploaded.

• How to make a PDF on iPhone

  Make a PDF on iPhone for free: scan paper, turn photos into a PDF, save a web page, an email or a document with Print, or combine PDFs. All built in.

• How to edit a PDF on iPhone

  Edit a PDF on iPhone for free: add text, sign and highlight with Markup, move, rotate or delete pages in Preview, and what to do about existing text.

• Is there a free PDF editor for iPhone?

  Is there a free PDF editor for iPhone? Markup and Preview fill in, sign and edit pages for free. What Acrobat and PDF Expert charge for, and Udfyld's price.