pdftk-server

PDF merging is performed by executing a command that specifies multiple input files and an output name. This combines separate documents into a single, unified file for easier distribution and archival.

Yes, you can encrypt and decrypt PDFs with password protection. The command-line tool applies security restrictions to the document, ensuring that only authorized users with the password can access or modify the PDF content.

Filling PDF forms involves passing FDF or XFDF data files to the command-line processor. The tool maps the data fields to the form fields in the PDF and can optionally flatten the output to make the entries permanent.

Splitting a PDF into individual pages is done by running a command that breaks a single input document into multiple output files. This approach extracts each page as a separate PDF for granular document processing.

Yes, the command-line tool supports extracting PDF metadata and attempting to repair corrupted files. It reads the document properties to extract metadata and runs recovery operations to fix damaged PDF structures.

Applying watermarks and stamps involves using a command to overlay background watermarks or foreground stamps onto the PDF. This adds visual branding or security marks directly onto the document pages.