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DPart is a metadata hierarchy that can be present in a PDF file to provide additional information associated with pages or groups of pages.

callas pdfDPartner is a free Acrobat plugin (Acrobat DC Standard and Pro only) provided by callas software that allows for viewing, extracting and importing DPart metadata.

Ultimately, DPart information is to be used automatically, under software control. Yet being able to accurately see the data available in a PDF document greatly helps while building DPart capable software and while envisioning automation scenarios and building workflows. Sadly, a viewer for DPart information in a PDF file was so far lacking.

With callas pdfDPartner, if a PDF file has DPart metadata, it is possible to display the metadata hierarchy. This way you can quickly and easily browse the full document and also see the various DPart metadata blocks associated with the pages in the document. When clicking on a metadata entry the associated page is displayed in Acrobat.

In addition to that pdfDPartner allows you to export the DPart structure into a JSON file that could then be used in other applications e.g. to simulate automated processes. It can also be modified and imported back into the PDF file to adjust the structure. Or you use the JSON format that is used by pdfDPartner to derive completely new structures that are then imported into PDF files that lack any DPart information.

As callas software believes in the potential that DPart can offer for page based PDF automation, it has decided to provide the solution free of charge.


  • Easy inspection of DPart metadata in PDF documents.
  • Export of DPart information for further analysis and workflow modeling.
  • Import of DPart structures into any PDF files.

Key features

  • As a plugin integrated into Adobe Acrobat (Acrobat DC Standard and Pro only).
  • Immediate identification of PDF documents containing DPart information.
  • Full overview of all DPart information in a PDF, with links to the associated pages or page ranges.
  • Export of DPart information to a JSON file for further analysis.
  • Import of DPart information from properly formatted JSON files.

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