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I'm printing A3 landscape pages from PowerPoint using the PDF24 printer. Then I use PDF24 to split each landscape page into two portrait pages.
The resulting PDF looks correct in standard PDF readers, but my printing press (CoolLibri) and DearFlip detect a larger page size than expected. This issue happens only after splitting the pages in two.
If I print the faulty PDF again through the PDF24 printer, the page size becomes correct.
I suspect that the MediaBox is not updated during the split operation, while only the CropBox/TrimBox is changed. Could you confirm whether the “split pages” tool updates the MediaBox, and if not, whether this could be fixed?
Daniel
Hello Daniel,
thank you for the precise analysis, you are right. The mode "Halve pages" of the tool "Split PDF" keeps the MediaBox of the original page (the full A3 landscape page) for both halves and only sets the CropBox to the left or right half. PDF viewers show the CropBox, so the file looks correct there, but programs that read the MediaBox see the full A3 size. The online tools use the same code.
This is a bug, we have added it to our list. Until it is fixed, printing the split file again on the PDF24 printer, as you did, gives pages with the correct size.
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