Bug 688282

Summary:	Xref-streams ignored in hybrid-ref PDFs
Product:	Ghostscript	Reporter:	SaGS <sags5495>
Component:	PDF Interpreter	Assignee:	Alex Cherepanov <alex>
Status:	NOTIFIED FIXED
Severity:	normal
Priority:	P3
Version:	master
Hardware:	PC
OS:	All
Customer:		Word Size:	---
Attachments:	Suggested patch.

Description SaGS 2005-08-24 13:49:16 UTC

There are 2 main types of xref tables: the "classic xref" available in all 
PDF versions, and "xref streams" available in PDF1.5+. There is also a mix 
in the form of "hybrid-reference PDFs". For the latter, GS ignores the 
xref-stream part, beheaving as a PDF1.4-and-earlier viewer, even it does 
handle both main types of xref.

Comment 1 SaGS 2005-08-24 13:52:58 UTC

Created attachment 1650 [details]
Suggested patch.

Comment 2 Dan Coby 2005-08-26 16:50:50 UTC

Please attach a sample file.

Comment 3 SaGS 2005-08-26 23:29:23 UTC

See the sample for bug 688283 "'trailer' without 'startxref'".

Notes:
- There's extra trouble with that file, which compounds the problem 
  described here (patch attached on that bug report).
- For that file, only structure information is hidden from PDF1.4 viewers, 
  so don't expect to see any difference by displaying/printing the file. 
  I stumbeld against this while fixing pdfinflt.ps (and there you will 
  see the difference).

Comment 4 Henry Stiles 2007-12-31 13:39:20 UTC

This was not assigned correctly.

Comment 5 Alex Cherepanov 2008-01-01 13:59:41 UTC

The patch is adopted and committed as a rev. 8473.
Thank you, SaGS.

Regression testing shows no differences.