PDFtk vs Secret PDF
A side-by-side look at PDFtk and Secret PDF. For an in-depth review of either product, follow the links below.
PDFtk
Office & Productivity
PDFtk is an open-source command-line tool for working with PDF documents. It enables users to merge, split, rotate, encrypt and decrypt PDF files. PDFtk is lightweight, fast and cross-platform.
pdfeditormergesplitrotateencryptdecrypt
Secret PDF
Security & Privacy
Secret PDF is a free software tool for Windows, Mac and Linux that allows users to password protect, encrypt and secure their PDF files. It features standard and military grade AES encryption methods to password protect and lock PDFs, preventing unauthorized access.
pdfencryptionpasswordprotect
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