We also have the same problem when converting to PDF. This is a very annoying problem, as Aspose use 100% of CPU on our web app so it needs to be restarted - unhappy users .
We do a lot of things about quality management and excellence, so we deal a lot with files that include the EFQM model, which EFQM did in vector format with EMF files.
I enclose sample problematic file with only 1 slide with EFQM model logo which is only 1MB, but if you want to convert to PDF it takes 300 seconds on my computer (Intel® Core™ i7-8850H CPU @ 2.60GHz, 32 GB RAM, Windows 11).
I used Aspose.Slides.21.12.
Code for reproduce issue:
String s = "D:/aspose/bugs/EFQM/EFQM2.pptx"; String sOut = "D:/aspose/bugs/EFQM/EFQM2.pdf"; Presentation doc = new Presentation(s); doc.save(sOut, com.aspose.slides.SaveFormat.Pdf);
Beside the issue with high CPU and very long conversion time, the quality of converted image is also low.
EFQM2.zip (1.0 MB)