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PDFZilla Batch PDF Encryptor is a Windows utility for applying passwords and encryption to multiple PDF files at once. It is aimed at users who need straightforward batch PDF protection rather than a full document-editing suite.
💡 Pick it for complete PDF editing, signing, and security workflows beyond batch encryption.
Adobe Acrobat offers advanced OCR capabilities and a wide range of PDF editing features.
Starting from $14.99/month
💡 Pick it for a free Windows toolkit that includes PDF encryption and many related utilities.
PDF24 Creator is a free PDF creator that offers various tools for PDF editing and conversion.
Foxit
💡 Pick it for business-grade PDF security and editing with a lighter Acrobat-style workflow.
Foxit PDF Editor is a cross-platform PDF editor for individuals, teams, and enterprises that need editing, conversion, signing, and document security. It...
From $129/year
💡 Pick it for a simple online or desktop PDF workflow when occasional encryption matters more than scale.
Sejda is an online PDF editor that allows users to edit, merge, split, compress, and convert PDF files.
Free / Paid
💡 Pick it for a full desktop PDF suite with strong security and a possible one-time purchase.
Nitro PDF Pro is a feature-rich PDF editor with robust annotation and collaboration capabilities.
Starting at $159.99 (one-time purchase)
💡 Pick it for free, cross-platform, scriptable PDF encryption and automation.
QPDF is a command-line program that does structural, content-preserving transformations on PDF files.
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