[PDFBOX-4295] Don't create intermediate streams when merging files

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.11, 3.0.0 PDFBox
• Fix Version/s: 2.0.12, 3.0.0 PDFBox
• Component/s: Utilities
• Assignee: Andreas Lehmkühler
• Reporter: Andreas Lehmkühler
• Created: 20/Aug/18 16:54
• Updated: 21/Nov/18 17:33
• Resolved: 20/Aug/18 17:21

Description

from dev@pdfbox posted by tilman

While looking at

https://stackoverflow.com/questions/51564781/error-merging-large-pdf-files-with-pdfbox-missing-end-of-file-marker-eof/

I noticed that the merge utility makes streams from files... which means that whole files are getting cached to allow random access. IMHO it would be better to keep files as files and streams as streams, i.e. have an array of objects and then "do the right thing".

It doesn't makes sense to create intermediate streams, PDDocument.load should handle different ways of input

Issue Links

• is related to: PDFBOX-4383 PDFMergerUtility seems to leave source file open