[PDFBOX-4916] Use dedicated scale and translate operations instead of concatenate where possible

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.20, 3.0.0 PDFBox
• Fix Version/s: 3.0.0 PDFBox
• Component/s: Text extraction
• Assignee: Andreas Lehmkühler
• Reporter: Alfred
• Created: 15/Jul/20 07:46
• Updated: 18/Aug/23 05:46
• Resolved: 22/Jul/20 06:07

Description

LegacyPDFStreamEngine does translating and scaling using the generic concatenate matrix ops.

A scale or a translate require much less multiplications and so there's room to improve there.

I have the code ready and I will submit a patch right away.