Pdftk

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pdftk

pdftk is a useful pdf manipulation tool. It allows one to:

• Merge PDF Documents
• Split PDF Pages into a New Document
• Decrypt Input as Necessary (Password Required)
• Encrypt Output as Desired
• Burst a PDF Document into Single Pages
• Report on PDF Metrics, including Metadata and Bookmarks
• Uncompress and Re-Compress Page Streams
• Repair Corrupted PDF (Where Possible)

Encrypting pdf with password

To encrypt pdf with password using 'pdftk' use:

pdftk <source_pdf> output <destination_pdf> user_pw PROMPT

Removing password from pdf

To remove password from a password-protected pdf use:

pdftk <input_pdf> input_pw PROMPT output <output_pdf>

pdftk is not available in CentOS 7.x onwards at time of writing. Use CentOS 7.x pdfunit instead.

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