Thank you for your reply.
"Should I upgrade 13.0.5 to 13.0.13" – I asked because I was not sure if CMYK was a reason and if upgrading to 13.0.13 was good decision.
Meanwhile, I did some test with CMYK images and I can confirm that CMYK is not a reason of my problem.
When I tried export my report with 1000 images (about 800k/ image) I got the mentioned error, but when I tried export report with 700 images the export was created with no error. However, after second attempt I got “out of memory” error. After third attempt I got “invalid pointer” error.
Moreover, I discovered that memory usage is still growing.
It looks like memory leak problem.
In list of fixed issues for 13.0.13 is information about fixing a memory leak during export to PDF so that’s why I tried 13.0.13.
Now, I’m downloading 13.0.14 and I’m going to test it out.
“The system cannot find the path specified.” – this error is very strange because I did not any change in my source.
The same code on 13.0.5 is working (I don’t have this error) and for small reports I can do export to PDF file.
After upgrading, I tested the same report with the same pdf target path and as the same user.
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As fresh update:
On 13.0.14 export to pdf works correctly up to 2550 images.
At 2600 I have “The system cannot find the path specified” error but I did simple calculation and: 2550 (number of images) x 0.8 (MB per image) = 2040 MB very close 2GB.
It seems to be memory limitation.
Good news: memory level is stable there is no memory leak as previous.