This will decrypt or remove PDF password of the input PDF file input.pdf using the password password and save the result as decrypted.pdf. Remove PDF password pdftk input.pdf input_pw password output decrypted.pdf This will encrypt or protect pdf by password of the input PDF file input.pdf with the owner password password and save the result as encrypted.pdf. Protect PDF by Password pdftk input.pdf output encrypted.pdf owner_pw password You can adjust the rotation angle as needed. This will rotate all pages in the input PDF file input.pdf by 180 degrees and save the result as rotated.pdf.

Rotate PDF documents or pages pdftk input.pdf cat 1-endS output rotated.pdf This will merge file1.pdf, file2.pdf, and file3.pdf into a single PDF file called merged.pdf. Merge PDF documents pdftk file1.pdf file2.pdf file3.pdf cat output merged.pdf It’s a popular tool among Linux users, especially for batch processing and automating PDF workflows. pdftk allows users to merge, split, rotate, encrypt, decrypt, and perform other advanced PDF manipulation tasks. It’s available for Linux, Windows, and macOS platforms. Pdftk (PDF toolkit) is a command-line tool for manipulating PDF documents. Frequently Asked Questions by New Linux Users.Create a table of contents (TOC) for a PDF document.Merge multiple PDF files into a single document with bookmarks.Extract specific pages or sections from a PDF document.Flatten filled-out PDF forms to make them uneditable.Fill out PDF forms with user-provided data.Stamp a watermark or text onto a PDF document.Decrypt and encrypt individual PDF files.Rotate individual pages in a PDF document.Split PDF documents into separate pages or sections.Attach files to pdf pages or pdf documents:.Fill PDF Forms with X/FDF Data and/or Flatten Forms.Uncompress and re-compress page streams / repair corrupted pdf.Attach files to pdf pages or pdf documents.Add/update pdf metrics, bookmarks or metadata.Report pdf metrics, bookmarks and Metadata.

Uncompress and re-compress page streams.

Attach files to PDF pages or PDF documents.

Add/update PDF metrics, bookmarks, or metadata.

Report PDF metrics, bookmarks, and metadata.

Apply a background watermark or a foreground stamp.

Generate PDF data stencils from PDF forms.

Fill PDF forms with X/FDF Data and/or Flatten Forms.

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