This error usually appears when the expiration date has passed for the link used to download an eBook from Adobe Content Server. In a normal workflow, an .acsm file is generated for a book that is used as the link to download the actual book. This... Read More

Problem / Error Solution(s) / Info java.lang.Error: Problem reading key and certificate from keystore Password in fulfillment.conf may be incorrect (including extra white space) p12 (certificate) may be corrupted E_LSGN_NO_CERTIFICATE and... Read More

If you have an update for a book that is packaged in Adobe Content Server, or you want to change metadata, such as the title or description, or want to re-package for any other reason, you can use the replace feature in the package process. This will... Read More

With the introduction of Java 7u141 and 8u131, Oracle decided that it was time to disable MD5 signatures. While everyone can agree that this was a good decision, it does cause some havoc with software that still uses MD5 signed JAR files. Adobe... Read More

If you are an Adobe Content Server administrator that needs to change the fulfillment URL of your ACS installation, perhaps because you may be moving ACS to the cloud, please be aware that there are additional steps to be taken to do so... Read More

You can specify an earlier version if you like, but this does not actually affect the metadata content that is generated for the PDF document. What you are doing is changing the version number so that the document will pass review. This change does... Read More

When your application starts, it will call the PDFLInitHFT() method to begin the initialization process for the Library. When the Library initializes it compiles a list of all its available resources. In particular it identifies the file folders... Read More

Using the Adobe PDF Library, you can access the XML structure behind an XFA form field. XFA, or XML Forms Architecture, is a set of proprietary XML specifications for use with web forms. XFA forms are saved within a PDF document. If you want to merge... Read More

A Forms Data Format (FDF) file is a text file used by Adobe Acrobat to hold values exported from PDF forms documents. The Adobe PDF Library views an FDF file as a COS document. As such, it can be opened by the Adobe PDF Library, and can be used with... Read More

The watermark object created by the PDF Library PDDocAddWatermarkFromText() API is a form XObject in the PDF document, with Optional Content with the name “/Watermark.” If you create a watermark in a PDF document using the Watermark feature in... Read More