In the context of cryptography, encryption serves as a mechanism to ensure confidentiality. Since data may be sensitive information such as passwords and personal communication may be exposed to potential interceptors. To protect this information encryption allows the lock and protection of documents.
PTSource PDF Knitter
PTSource PDF Knitter allows you to protect and organize your PDF files. You can merge, split, reorder, watermark, encrypt with AES 128 bit, extract images, prevent printing, prevent modifying, password protect and more.
PTSource PDF Knitter features

Watermark Text Yes
Watermark Size Yes
Watermark Font Yes
Watermark Color Yes
Protect PDF Yes
40 Bit Encryption Yes
128 Bit Encryption Yes
Restrict Printing Yes
Restrict Modification Yes
Restrict Extraction Yes
Set Reader Password Yes
Set Owner Password Yes
Extract Images Yes
Merge PDF´S Yes
Split PDF´S Yes


  • Download the Installer.
  • When Windows says the installer is not trusted, click “more info” and then “run anyway”.
  • Follow the instructions in the installer.
  • You can now launch the software from your desktop.

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