Bug 702167

Summary:	PDF to TIFF conversion missing text characters
Product:	Ghostscript	Reporter:	Akrati <akrati.gupta>
Component:	Font API	Assignee:	Chris Liddell (chrisl) <chris.liddell>
Status:	RESOLVED FIXED
Severity:	normal	CC:	sphinx.pinastri
Priority:	P4
Version:	master
Hardware:	PC
OS:	Windows 10
Customer:		Word Size:	---
Attachments:	Original PDF Original PDF Snippet Converted TIFF snippet reduced PDF file extracted TT font ttfdump of TT font

Description Akrati 2020-02-28 10:15:57 UTC

Created attachment 18908 [details]
Original PDF

My application uses Ghostscript to convert PDFs to TIFs and generally it works fine. However, I have a situation where it's losing parts of the PDF after the conversion to .TIFF files. Please refer to the attached original PDF and the converted .Tiff file - at the top-right there's an invoice number which has blank space in between of the invoice number, digit 4 is missing. Also at the bottom of the first page, letter T is totally missing in the converted TIF.  The current version used in application is 9.18, however I tried to convert the same PDF with different versions(9.50,9.27,9.22,9.19) of GhostScript, but still the issue persists.

Here's the basic command I'm using:

"C:\Apps\ghost\gs9.18\bin\gswin64c.exe" -dNOPAUSE -r300 -sDEVICE=tiffgray -sCompression=lzw -dBATCH -sOutputFile="C:\Apps\ghost\gs9.18\bin\14929421.tif" "C:\Apps\ghost\gs9.18\bin\14929421.pdf"

Output log:
C:\Users\Akrati.Gupta>"C:\Apps\ghost\gs9.18\bin\gswin64c.exe" -dNOPAUSE -r300 -sDEVICE=tiffgray -sCompression=lzw -dBATCH -sOutputFile="C:\Apps\ghost\gs9.18\bin\14929421.tif" "C:\Apps\ghost\gs9.18\bin\14929421.pdf"
GPL Ghostscript 9.18 (2015-10-05)
Copyright (C) 2015 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
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Comment 1 Akrati 2020-02-28 10:49:18 UTC

Created attachment 18911 [details]
Original PDF Snippet

This is part of the PDF where the issue is occurring in the converted TIFF

Comment 2 Akrati 2020-02-28 10:52:00 UTC

Created attachment 18912 [details]
Converted TIFF snippet

Comment 3 Ken Sharp 2020-02-28 11:22:36 UTC

*** Bug 702168 has been marked as a duplicate of this bug. ***

Comment 4 Ken Sharp 2020-02-28 11:25:05 UTC

Obseelting the PDF file is not helpful, how do you expect anyone to investigate the problem without access to the original file ?

Comment 5 Akrati 2020-02-28 11:26:47 UTC

(In reply to Ken Sharp from comment #4)
> Obseelting the PDF file is not helpful, how do you expect anyone to
> investigate the problem without access to the original file ?

Hi Ken, this is project specific data which I do not wish to include, there wasnt any option to delete the bug or attachment. I have added the snippet though

Comment 6 Ken Sharp 2020-02-28 11:27:06 UTC

Created attachment 18916 [details]
reduced PDF file

Comment 7 Ken Sharp 2020-02-28 11:27:33 UTC

Created attachment 18917 [details]
extracted TT font

Comment 8 Ken Sharp 2020-02-28 11:28:01 UTC

Created attachment 18918 [details]
ttfdump of TT font

Comment 9 Ken Sharp 2020-02-28 11:31:40 UTC

(In reply to Akrati from comment #5)
> (In reply to Ken Sharp from comment #4)
> > Obseelting the PDF file is not helpful, how do you expect anyone to
> > investigate the problem without access to the original file ?
> 
> Hi Ken, this is project specific data which I do not wish to include, there
> wasnt any option to delete the bug or attachment.

We don't ever delete attachments from Bugzilla, its hard to do without corrupting the database.


> I have added the snippet though

A picture of the PDF file is utterly unhelpful, so I've restored the PDF file, if you don't want me to do that then we can't look at your problem.

Comment 10 Akrati 2020-02-28 11:43:05 UTC

(In reply to Ken Sharp from comment #9)
> (In reply to Akrati from comment #5)
> > (In reply to Ken Sharp from comment #4)
> > > Obseelting the PDF file is not helpful, how do you expect anyone to
> > > investigate the problem without access to the original file ?
> > 
> > Hi Ken, this is project specific data which I do not wish to include, there
> > wasnt any option to delete the bug or attachment.
> 
> We don't ever delete attachments from Bugzilla, its hard to do without
> corrupting the database.
> 
> 
> > I have added the snippet though
> 
> A picture of the PDF file is utterly unhelpful, so I've restored the PDF
> file, if you don't want me to do that then we can't look at your problem.

Thats okay Ken, you can please refer to the original pdf

Comment 11 Akrati 2020-03-10 14:07:05 UTC

Hi Team,

Is there any update on the issue mentioned.

Comment 12 Ken Sharp 2020-03-10 14:09:48 UTC

(In reply to Akrati from comment #11)
> Hi Team,
> 
> Is there any update on the issue mentioned.

You are not a commercial customer, do not adjust the importance or priority fields.

Comment 14 Akrati 2020-03-25 16:04:57 UTC

Hi Team,
is there any update on the issue. this is quite urgent to us. would be great if you can look this on priority or atleast share us the estimated resolution time.

Comment 15 Ken Sharp 2020-03-25 16:30:28 UTC

(In reply to Akrati from comment #14)
> Hi Team,
> is there any update on the issue. this is quite urgent to us. would be great
> if you can look this on priority or atleast share us the estimated
> resolution time.

As per comment #12, you (Shell) are not a customer. We are very happy to receive reports from our free user community, and we will address them when we have resource to do so.

However our limited resources are directed primarily to supporting our customers.

Comment 16 Peter Cherepanov 2020-11-18 03:37:20 UTC

This problem has been incidentally fixed in v.9.53.1 .
Akrati, please upgrade to the latest version, 9.53.3 .
This bug report can be closed.