View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0001554||Scribus||Internal||public||2005-01-17 07:57||2016-03-30 22:36|
|Summary||0001554: PDF Creation - image downsampling philosophy|
|Description||In the PDF creation dialogue -|
The selection of "image downsampling" results in the downsampling of both imported graphics (e.g. a jpg photo) and images embedded in an imported PDF (e.g. a table from OpenOffice). Subsequently, when viewed on the screen, the downsampled PDF image is of very poor quality and unsuitable for distribution to third parties for screen viewing.
I believe this to be the wrong philosophy. The user should be given the option not to downsample imported pdf images.
|Steps To Reproduce||Create 2 graphics boxes, import a high res jpg in one and a pdf table exported from OO in the other (or an eps from OO Draw). Select "PDF creation" dialogue, select "image downsampling", set to 100 dpi. View PDF in Acrobat. Photo is fine but table is dreadful.|
|Additional Information||In the file "pdflib.cpp":|
Lines (there are 2) "QMIN(Options->PicRes,Options->Resolution)" is responsible for the described behaviour.
For my purposes, I have changed this to read "QMAX(Options->PicRes,
A proper solution would be to use another check box to control "PicRes".
|Tags||No tags attached.|
|related to||0002745||new||PDF Export: Image resampling needs more control over when to resample|
|related to||0003560||closed||fschmid||PDF export should not `upsample' images|
|related to||0002277||new||Image compression in PDF|
|parent of||0003561||feedback||Default settings for image export should be more flexible|
|related to||0002486||closed||Change meaning of "Quality" in PDF Export|
|related to||0003697||closed||cbradney||PDF-Export / General / GroupBox "Image Compression method"|
|related to||0003696||closed||Tooltip PDF-Export / General / Compression Method: Remove confusing info from tooltip|
|Not all the children of this issue are yet resolved or closed.|
|moving to 1.3+ 1.2.x is now stable|
Reminder sent to: wdobler
what do you think of it?
[Sorry for reacting that late -- I was on vacation]
This sounds like a good suggestion.
As long as PDF is imported as raster graphics, _any_ downsampling of imported PDF is problematic; with large images, on the other hand, downsampling can be highly desirable. And these two constraints will frequently meet in the same document.
[I guess issue 0003561 is easier to fix, though, as it is only about defaults in the user interface, whereas this one probably requires tracking of where a raster image came from.]
|2005-01-17 07:57||andyprior||New Issue|
||Note Added: 0004129|
||Severity||minor => feature|
||Product Version||1.2.1 => 1.3|
|2006-04-08 15:19||mhanski||Relationship added||related to 0002745|
|2006-04-08 15:20||mhanski||Relationship added||related to 0003560|
|2006-04-20 21:33||mhanski||Relationship added||related to 0003561|
|2006-04-20 21:34||mhanski||OS||Linux 2.6 kernel => any|
|2006-04-20 21:34||mhanski||OS Version||SuSE 9.2 => any|
|2006-04-20 21:34||mhanski||Platform||Athlon 2500+ => any|
|2006-04-20 21:34||mhanski||Build||8 =>|
|2006-04-20 21:35||mhanski||Note Added: 0010209|
|2006-04-21 13:48||mhanski||Relationship added||related to 0002486|
|2006-04-27 05:44||wdobler||Note Added: 0010529|
|2006-04-27 20:58||mhanski||Relationship added||related to 0003697|
|2006-04-27 21:11||mhanski||Relationship added||related to 0003696|
|2006-05-09 19:47||mhanski||Status||new => feedback|
||Relationship replaced||parent of 0003561|
||Status||feedback => acknowledged|
|2016-03-30 22:36||Kunda||Relationship added||related to 0002277|