Text extraction limitations for large PDFs in Adobe Experience Manager as a Cloud Service (AEMaaCS)

Last update: Tue Feb 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

This article resolves the issue of incomplete text extraction for large PDF documents in Adobe Experience Manager as a Cloud Service (AEMaaCS) due to character limitations. The behavior is intentional, designed to optimize storage and processing efficiency, but it can affect workflows requiring full-text extraction.

Description description

Environment

Adobe Experience Manager as a Cloud Service (AEMaaCS)

Issue

When processing large PDF documents with AEM’s out-of-the-box Asset Processing capabilities, text extraction is incomplete for extensive PDFs, such as those containing hundreds of pages. The extracted text may end prematurely due to a character limit of 100,000 characters. Symptoms include:

The /jcr:content/renditions/cqdam.text.txt file for large PDFs contains text only up to approximately 108 pages for a 580-page PDF.
Full-text extraction is constrained due to character limitations.
The text extraction process is limited to 100k characters.
Only essential sections of the document are extracted through smart summarizing.
This limitation aligns with Oak’s indexing capabilities within AEM and aims to optimize storage and processing efficiency.

Resolution resolution

The limitation is by-design to ensure efficient processing times and cost management in AEM.
An enhancement request (ASSETS-45872) has been raised for future AEM releases to address this limitation, potentially introducing a worker capable of processing larger PDF files.
Review AEM release notes for announcements regarding changes or improvements to PDF text extraction in upcoming versions.

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