Bug 105614

Summary: pdfimages miscalculates image PPI for rotated and scaled images (patch provided)
Product: poppler Reporter: freedesktop.mrbax
Component: utilsAssignee: poppler-bugs <poppler-bugs>
Status: RESOLVED MOVED QA Contact:
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: Patch to correct the error

Description freedesktop.mrbax 2018-03-20 03:59:21 UTC 
Created attachment 138211 [details] [review]
Patch to correct the error

pdfimages miscalculates image PPI for rotated and scaled images

Tested on https://github.com/angea/PDF101/blob/master/handcoded/111_current-transformation-matrix-ctm.pdf


UNPATCHED

>pdfimages -list 111_current-transformation-matrix-ctm.pdf
page   num  type   width height color comp bpc  enc interp  object ID x-ppi y-ppi size ratio
--------------------------------------------------------------------------------------------
   1     0 image       2     2  rgb     3   8  image  no         5  0     4     4   13B 108%
   1     1 image       2     2  rgb     3   8  image  no         5  0     5     3   13B 108%
   1     2 image       2     2  rgb     3   8  image  no         5  0     3     5   13B 108%
   1     3 image       2     2  rgb     3   8  image  no         5  0     6     3   13B 108%
   1     4 image       2     2  rgb     3   8  image  no         5  0     3    10   13B 108%
   1     5 image       2     2  rgb     3   8  image  no         5  0     4 72000   13B 108%
   1     6 image       2     2  rgb     3   8  image  no         5  0     4     2   13B 108%
   1     7 image       2     2  rgb     3   8  image  no         5  0     2     4   13B 108%
   1     8 image       2     2  rgb     3   8  image  no         5  0 14401     1   13B 108%
   1     9 image       2     2  rgb     3   8  image  no         5  0     1     2   13B 108%
   1    10 image       2     2  rgb     3   8  image  no         5  0 0.950     4   13B 108%
   1    11 image       2     2  rgb     3   8  image  no         5  0     4 0.950   13B 108%
   1    12 image       2     2  rgb     3   8  image  no         5  0 0.950     4   13B 108%
   1    13 image       2     2  rgb     3   8  image  no         5  0     1     4   13B 108%
   1    14 image       2     2  rgb     3   8  image  no         5  0 0.950     4   13B 108%
   1    15 image       2     2  rgb     3   8  image  no         5  0 0.950     4   13B 108%
   1    16 image       2     2  rgb     3   8  image  no         5  0     4 0.950   13B 108%
                                                                                                                                                                               

PATCHED

>pdfimages -list 111_current-transformation-matrix-ctm.pdf
page   num  type   width height color comp bpc  enc interp  object ID x-ppi y-ppi size ratio
--------------------------------------------------------------------------------------------
   1     0 image       2     2  rgb     3   8  image  no         5  0     4     4   13B 108%
   1     1 image       2     2  rgb     3   8  image  no         5  0     5     3   13B 108%
   1     2 image       2     2  rgb     3   8  image  no         5  0     3     5   13B 108%
   1     3 image       2     2  rgb     3   8  image  no         5  0     4     4   13B 108%
   1     4 image       2     2  rgb     3   8  image  no         5  0     4     4   13B 108%
   1     5 image       2     2  rgb     3   8  image  no         5  0     3     4   13B 108%
   1     6 image       2     2  rgb     3   8  image  no         5  0     3     4   13B 108%
   1     7 image       2     2  rgb     3   8  image  no         5  0     4     3   13B 108%
   1     8 image       2     2  rgb     3   8  image  no         5  0 0.720 0.509   13B 108%
   1     9 image       2     2  rgb     3   8  image  no         5  0 0.720 0.624   13B 108%
   1    10 image       2     2  rgb     3   8  image  no         5  0 0.450     4   13B 108%
   1    11 image       2     2  rgb     3   8  image  no         5  0     4 0.450   13B 108%
   1    12 image       2     2  rgb     3   8  image  no         5  0 0.450     4   13B 108%
   1    13 image       2     2  rgb     3   8  image  no         5  0 0.600     4   13B 108%
   1    14 image       2     2  rgb     3   8  image  no         5  0 0.450     4   13B 108%
   1    15 image       2     2  rgb     3   8  image  no         5  0 0.450     4   13B 108%
   1    16 image       2     2  rgb     3   8  image  no         5  0     4 0.450   13B 108%
Comment 1 GitLab Migration User 2018-08-20 21:32:54 UTC 
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