Merge multiple PDF files into one file

One excellent feature of the XSane scanning application is that it can save your scanned documents to Adobe Acrobat PDF format, merely by saving them with a .pdf extension, as in examplefile.pdf . But one not-so-nice feature is the fact that there’s really no expedient way to save multiple scans into a single PDF file.  If you do 3 scans, you have 3 PDF files.  What now?  You need something that can merge (also called “join”) these files into one big beautiful file.

Enter pdftk, or PDF Tool Kit.  This is a comprehensive set of tools that can – among other things – merge, split up, encrypt/decrypt, password protect, rotate, and repair PDF files.

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