I am trying to add a JPEG image to a Scribus document, and then to export it as PDF; the file size of the resulting PDF should not be much higher.
I just added a frame for an image, loaded the JPEG file into it, and adjusted the image size to the frame's size.
Then I exported it as PDF, and the file size of the PDF was much higher than the JPEG file. The JPEG file has a size of 165 KB, and the PDF's size is 1 MB.
I tried to do the same using gimp, and there the resulting file is 1 MB as well, so same problem.
Then I tried imagemagick's
convert; there the resulting file is 177 KB, using:
convert 1.jpg 1.pdf
As for Scribus, I tried to change some settings in the PDF export (compression method, max. resolution etc.). This did reduce the file size, but image quality got worse.
How can I include a JPEG image in Scribus, and then export it "as-as" to PDF, without any real transformation, except for scaling (which could be stored just as a factor)?
- I am using Scribus 1.4.6 on Linux
- I cannot upload my JPEG file, but I could reproduce it using this file: The JPEG file size is 220 KB, the resulting PDF is 1 MB.
This issue has been crossposted to the Scribus issue tracker