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From Dropbox
Or drag and drop files here
Desktop version: 24-in-1 CleverPDF for Windows
More productive way for PDF to Word conversion and other 24 PDF tasks. Desktop version doesn't require the Internet Connection, support batch processing and larger files.Desktop version: 20-in-1 CleverPDF for Mac
More productive way for PDF to Word conversion and other 20 PDF tasks. Desktop version doesn't require the Internet Connection, support batch processing and larger files.
Add the copying and printing restriction for PDF
Add permission security that prevents others from copying content from your PDF, or printing out the PDF. Once protected, the file is secured, the copy and print button will grey out in the Adobe Reader, some other PDF readers may ask for the password for copying and printing.
Introduction of PDF security
There are mainly two types of PDF password. 'Open Password' is the strongest, if you choose a long length and random characters, it's not likely to be cracked. 'Owner password' is a weak protection, which prevents someone from copying, editing or printing, but it may bypass by some PDF software.
Safe way to secure your PDF
All the files you uploaded and the encrypted PDF will be deleted from our server after 30 mins, and your password data will be erased as well. Files are transferred using SSL connections, which is encrypted so no one can get access to your files during the online PDF encryption process.
How to Encrypt PDF Online?
- Select a PDF by clicking 'Choose file' button or simply drag the file to the Encrypt PDF page.
- Select an encryption method, you can add open password or owner password with copying and printing restriction.
- Click 'Start Conversion' button to start the online encryption.
- Download the encrypted PDF file after processing.