View Issue Details

IDProjectCategoryView StatusLast Update
0013094ScribusImport / Exportpublic2018-04-30 11:59
Reportermauder Assigned To 
PrioritynormalSeverityminorReproducibilityalways
Status newResolutionopen 
PlatformLinuxOSUbuntuOS Version14.04
Product Version1.4.5 
Target Version1.4.7Fixed in Version 
Summary0013094: Export as image produces bad quality
DescriptionUsing "export as image" with a scribus page containing pdf images does produce much worse results than exporting the same page as pdf and using gs as rip (with same settings of course).
Steps To ReproduceCreate a new scribus document
insert an image frame and load a pdf file (e.g. text with vector fonts)
export the scribus document as image (e.g. lossless png, 600dpi)
view the result in gimp
 -> the quality is not as expected for 600dpi
Additional InformationI have uploaded a zip with two files: one exported as png from scribus as descriped above. The other one exported from scribus as pdf and afterwards converted to png with ghostscript (also 600 dpi). The uploaded Files are just small parts of the whole page.

Same effect in version 1.5.1svn.
Tags#please_test
PatchNo

Relationships

has duplicate 0015292 closedjghali "Export as image" limits quality for PDF images 

Activities

mauder

2015-05-28 15:08

reporter  

pdftest.zip (38,568 bytes)

mauder

2015-06-01 09:31

reporter   ~0035300

It seems that each pdf is rastered with 72dpi first and afterwards the complete page is resampled with the resolution given in the "export as image" dialog. But then the quality of pdfs is already poor.

mauder

2016-01-12 12:22

reporter  

testimages.zip (1,105,882 bytes)

mauder

2016-01-12 12:22

reporter   ~0038074

Unfortunately this bug isnt fixed in 1.4.6.
I uploaded new examples (testimages.zip) which shows that scribus text frames are rendered correctly (better quality with higher dpi) while the pdf-frame in the same document does have the same poor quality (72 dpi) every time. for comparison the same cutout with ghostscript as rip.
Bug occurs also in scribus 1.5 with linux and windows

mauder

2017-03-13 20:37

reporter   ~0043594

I hoped that resolving issue 14675 which seems to address a similar problem would fix this issue too. But unfortunately version 1.5.3svn Revision 21822 still has poor quality when exporting pdf frames to raster images with high dpi.

Issue History

Date Modified Username Field Change
2015-05-28 15:08 mauder New Issue
2015-05-28 15:08 mauder File Added: pdftest.zip
2015-06-01 09:31 mauder Note Added: 0035300
2016-01-12 12:22 mauder File Added: testimages.zip
2016-01-12 12:22 mauder Note Added: 0038074
2016-01-13 01:50 Kunda Tag Attached: #please_test
2016-01-29 01:55 Kunda Target Version => 1.4.7
2017-03-13 20:37 mauder Note Added: 0043594
2018-04-30 11:59 jghali Relationship added has duplicate 0015292