PDF readers and open-source libraries used in document processing will all need updating to handle the Brotli compression filter.

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The PDF Association is preparing to publish a specification for Brotli compression in PDF documents, promising 10-25% file size reductions. This change will require widespread software updates across PDF readers (Adobe Acrobat, Foxit, browser-integrated readers) and open-source libraries used in document processing workflows. Unlike previous PDF format additions, Brotli-compressed PDFs won't open on non-updated software, creating potential compatibility issues. Enterprises will need to identify and update dependencies throughout their PDF processing pipelines. Adoption depends on early implementers like Adobe Reader supporting the format, with official ISO PDF 2.0 standard inclusion still pending.

New PDF compression filter will save space, need software updates