SetaPDF-Core allows encrypt PDF documents ▷ setasign.com

Scale and Pad

Extract Comments
Get image sizes and resolutions
Check For Text
Tile a Page
Multiple Pages per Sheet
Flatten Annotations
...more demos

Standard Security

Access a page in a 50000 pages document
Get Colors From PDF
Get Font Information
Add Text Annotations
Find form field coordinates and values
Replace link targets
Bookmark Outline
Set Metadata
Read Metadata
Rotate Pages
Page Count

Public-key Security - Demo

This assistant lets you encrypt PDF documents based on Public Key Certificates - also called certificate based encryption - in pure PHP.

For demonstration purposes, one recipient certificate is fixed. You have to install its private key on your machine which is available as .pem or as .pfx (password is "setapdf").

 Settings
 Run
 Code

Select or upload a file

The uploaded files are bound to your browser session and are not accessible by any other user. They will get deleted after 24 hours automatically.

Encryption Algorithm

Recipient Certificates

Permissions Restrict printing and editing of the document and its security settings Printing Allowed: Changes Allowed: Enable copying of text, images, and other content Enable text access for screen reader devices for the visually impaired

Upload public key Only X.509 Certificate Files (*.CER)

 Settings
 Run
 Code

Scale and Pad

Extract Comments
Get image sizes and resolutions
Check For Text
Tile a Page
Multiple Pages per Sheet
Flatten Annotations
...more demos

Standard Security

Access a page in a 50000 pages document
Get Colors From PDF
Get Font Information
Add Text Annotations
Find form field coordinates and values
Replace link targets
Bookmark Outline
Set Metadata
Read Metadata
Rotate Pages
Page Count

Public-key Security - Demo

Select or upload a file The uploaded files are bound to your browser session and are not accessible by any other user. They will get deleted after 24 hours automatically.

Select or upload a file

The uploaded files are bound to your browser session and are not accessible by any other user. They will get deleted after 24 hours automatically.