[TIKA-2235] Use Tesseract's recommended DPI for PDF images

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.14
• Fix Version/s: 1.15, 2.0.0
• Component/s: parser
• Labels: ocr pdf
• Assignee: Unassigned
• Reporter: Matthew Caruana Galizia
• Created: 11/Jan/17 11:48
• Updated: 12/Apr/21 12:59
• Resolved: 11/Jan/17 12:09

Description

From the Tesseract wiki:

Tesseract works best on images which have a DPI of at least 300 dpi....

PDFParserConfig is currently initialised with a value of 200 for ocrDPI.