PDFlib PLOP – PDF Linearization, Optimization and Privacy
PDFlib PLOP is the application for server-based postprocessing of PDF files.
　
With PDFlib PLOP you can:

• Linearize a PDF file – for fast delivery and early access over the internet (byteserving).
• Optimize a PDF file – clear garbage and redundant objects from the file.
• Encrypt/decrypt a PDF file – using user and master passwords.

Linearize
Linearized PDF files can faster be delivered by a webserver and accessed faster be accessed by the user, because the first parts (pages) of a document can already be displayed on screen while the rest of the file is transmitted in the background. Linearization enables a much more direct user experience when accessing PDF files over the internet.
　
Optimize
Significantly reduces file size! Applications that generate PDF files do not always focus on file size for best internet transmission or archiving purposes. PDFlib PLOP can remove garbage, unnecessary objects and multiple identical objects, such as embedded fonts, images, identical ICC color profiles, etc.from PDF files to make this files significantly smaller end easier to handle in high volume environments – of course without any changes to content or quality of the file.

Security
PDFlib PLOP can apply/remove all Acrobat security features:

• Encrypt a PDF document with user or master password (or both).
• Remove PDF encryption if you know the document’s master password.
• Add or remove permission settings (e.g., printing or text extraction not allowed) if you know the document’s master password.
• Query information about the security status (encrypted with user or master password), encryption scheme (Acrobat standard security, WebBuy, etc.), permission settings, and document info fields.