PDFlib PLOP 4 and PLOP DS 4 Available

PDFlib GmbH announced the availabilty of the two new versions PLOP 4 and PLOP DS 4. In PLOP DS 4 additional support for cryptographic tokens for digitally signing PDF documents was added. On Windows, Linux, and Solaris PLOP DS can attach cryptographic tokens via the standard PKCS interface. Using this interface digital IDs on smartcards, USB sticks, and other secure devices can be used for generating the signatures. This includes devices with integrated keyboard for secure PIN input. PLOP 4. The new version of PLOP is now able to insert XMP metadata into PDF documents or extract XMP from PDF. Inserted XMP will be validated to make sure that valid output can be created. If the input document conforms to the PDF/A-1 standard, the user-supplied XMP must conform to the XMP rules set forth in PDF/A. These rules (including XMP extension schema validation) will be checked by PLOP to make sure that PDF/A input plus user-supplied XMP will result in standard-conforming PDF/A output. http://www.pdflib.com