Troubleshooting PDF Library Error 1073741825

The Details

Users may encounter an internal error while working with the PDF Library, specifically receiving the following error message:

Exception in thread "main" com.datalogics.PDFL.LibraryException: PDF Library Error: An internal error occurred. Error number: 1073741825.

This error typically arises in Java applications when attempting to create an ImageCollection from TIFF files that are either corrupted or improperly formatted. The error indicates that the PDF Library encountered an unexpected situation that prevented it from successfully processing the provided TIFF files. This can happen during the instantiation of the ImageCollection, leading to failure in converting these TIFF files into PDF format.

The problem is compounded when the input TIFF files are part of a larger batch that needs to be processed and converted to PDF format. In such cases, it can be challenging to determine whether the source of the error lies within a specific TIFF file or the approach taken to create the PDF.

Some common reasons for this error include:

A document has a "broken" matrix that does not have boundaries that make sense to the renderer.
A document is missing the media box for a page, which is necessary for correct rendering.
The content length specified for data that is DCT encoded does not match the actual content stream.

It is important to ensure that the Resources folder is available for rendering TrueType fonts with Identity-H requirements. Failure to correctly point the Library to the CMAP folder can also result in errors when processing PDFs containing specific font types.

Input File Behavior

In this case, the input files in question are TIFF files being used to create PDF documents. The user reported that some of these TIFF files are not formatted correctly, which leads to the failure in conversion.

TIFF files that are improperly formatted can cause the PDF Library to throw exceptions when attempting to instantiate an ImageCollection. This typically indicates either a structural issue with the TIFF files themselves or a discrepancy between the format of the TIFF files and what the library expects.

It is recommended to utilize a validation API to check the integrity of these TIFF files before attempting conversion. This can help identify any problematic files that may lead to internal errors during processing and allow for corrective action to be taken before causing issues downstream.

Resolution Summary

The resolution for this issue centers around validating TIFF files before processing them with the PDF Library. Here are the steps to follow for a successful resolution:

Identify and isolate the TIFF files that are causing the internal error. This can be done by testing individual TIFF files for their integrity.
Utilize any available validation APIs provided by the PDF Library to check whether the TIFF files conform to the expected format. If such APIs are not available, consider using third-party libraries to validate the file formats.
Examine the structure of the TIFF files, paying attention to the media box, DCT encoding specifications, and any possible "broken" matrices.
After validating the TIFF files, re-attempt the conversion to PDF. Ensure that all TIFF files being processed are in proper format to avoid any further internal errors.
Consider upgrading to the latest version of the PDF Library if errors persist, as updates may include bug fixes and enhancements that could resolve compatibility issues with certain file formats.

How to Get Additional Help

If you continue to experience issues or require further assistance, additional help is available. You can reach out to the technical support team via email at tech_support@datalogics.com. Our support representatives are equipped to provide guidance and troubleshooting assistance to help resolve any issues you may encounter.

Furthermore, for detailed documentation and guidance, please visit our documentation website at https://docs.datalogics.com. Here, you will find a wealth of resources including manuals, API references, and troubleshooting guides that can further aid you in your endeavors.

Remember, staying informed about the latest releases and updates can significantly improve your experience with the software. Always consider reviewing service bulletins for the latest information related to the PDF Library.