objstm

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drainerlight / php-pdf-decompressor

Pure-PHP PDF decompressor: converts PDF 1.5+ cross-reference & object streams (ObjStm) to a classic PDF 1.4 that parsers like FPDI's free parser can read. A qpdf-free alternative, no external binaries.

php pdf xref decompress fpdi qpdf pdf-parser objstm cross-reference-stream fpdi-pdf-parser

Updated Jul 1, 2026
PHP

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