Guides
Welcome
First steps
Getting started
Processing a PDF
Common functions
Topics
Encrypt files
Error handling
Tool guides
Merge PDF Guide
Split PDF Guide
Compress PDF Guide
Convert Office to PDF Guide
Convert PDF to JPG Guide
Convert Images to PDF Guide
PDF to PDF/A Guide
HTML to PDF Guide
Validate PDF/A Guide
Rotate PDF Guide
Unlock PDF Guide
Protect PDF Guide
Watermark PDF Guide
Add Page Numbers Guide
Repair PDF Guide
Extract Text Guide
Edit PDF Guide
Protect PDF Guide
Develop your own solution to secure PDF files with a password by integrating with iLovePDF’s REST API.
Remember that in order to use our Tool Guides, you need to have previous knowledge about the basics to
processing a PDF with our REST API. We strongly recommend that you read the Processing a PDF guide
before starting this one.
Basic protect PDF
Basic protect a PDF
Protect tool will lock the uploaded files with the given password. This password will be need in order to open these files.