How to do it on iPhone and iPad
Step-by-step guides with screenshots from Unlock my PDF. Every guide shows the exact buttons in the app.
Passwords
How to password protect a PDF on iPhone and iPad With Unlock my PDF you choose a PDF, type a password twice and slide: the copy is encrypted and asks for that password every time it's opened, on any device. How to remove a password from a PDF on iPhone and iPad If you know the password, Unlock my PDF saves a copy of the PDF that opens without it, ready to share, print or upload. How to remove printing and copying restrictions from a PDF on iPhone and iPad Some PDFs open normally but block printing, copying text or editing.
Organize
How to merge PDF files on iPhone and iPad Merge PDF in Unlock my PDF joins two or more PDFs into a single file: add them, drag them into order and slide. How to split a PDF into separate files on iPhone and iPad Split PDF in Unlock my PDF cuts one PDF into several files, either every few pages or by the page ranges you type.
Organize pages Delete, rotate and reorder pages · Guide coming soon
Extract pages A new PDF or JPEG images with only the pages you choose · Guide coming soon
Crop pages Remove the margins from the pages · Guide coming soon
Convert
How to compress a PDF on iPhone and iPad Compress PDF in Unlock my PDF shrinks a PDF that's too big for an email or an upload form. How to convert photos to a PDF on iPhone and iPad Photos to PDF in Unlock my PDF turns the photos you pick into one PDF, one photo per page.
Scan to PDF Paper documents with the camera · Guide coming soon
PDF to images Each page as JPG or PNG · Guide coming soon
PDF to text Get the text, scans included · Guide coming soon
Recognize text (OCR) Make scanned PDFs searchable · Guide coming soon
Security & privacy
How to redact a PDF on iPhone and iPad Redact in Unlock my PDF hides sensitive text for good: you search for it or draw boxes over it, and the app deletes what's underneath instead of just covering it.
Permissions Block printing, copying or editing · Guide coming soon
Remove metadata Author, app and dates hidden in the file · Guide coming soon
Flatten Forms and notes can no longer be edited · Guide coming soon
Edit & sign
Sign PDF Draw your signature and place it · Guide coming soon
Fill form Type into the fields of a PDF form · Guide coming soon
Add text or image Put a note, a logo or a stamp on a page · Guide coming soon
Watermark Mark every page, e.g. CONFIDENTIAL · Guide coming soon
Page numbers Number the pages in one tap · Guide coming soon
Automation
Unlock several PDFs Same password for all, e.g. monthly statements · Guide coming soon
Protect several PDFs One password for many files · Guide coming soon