PDFlib PLOP - US$99
PDFlib PLOP is a versatile tool for linearizing, optimizing, repairing, analyzing, encrypting and decrypting PDF documents.
PLOP linearization and optimization features create efficient and small PDF documents for fast Web delivery. PLOP protection features encrypt or decrypt PDF documents and apply or remove permission settings. PLOP’s repair mode automatically detects damaged PDF documents and fixes the problems if possible.
PDFlib PLOP DS - US$199
The extended version PLOP DS offers all features of PLOP plus the ability to apply digital signatures to PDF documents. The signatures can be validated in Adobe Acrobat and Adobe Reader, without the need for any additional software.Signatures can be created from digital IDs in the common PKCS#12 and PFX certificate formats. On Windows digital IDs from the Windows certificate store can also be used.
PDFlib pCOS - US$99
Retrieve PDF metadata, hypertext, or any other information from a PDF document. All objects outside the actual page content can be accessed with a simple interface.