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I'm trying to produce a custom sized PDF (841 x 3567mm). The preview in QGIS composer looks fine but when the Export to PDF is completed I'm missing the bottom portion of the PDF image. The composition is comprised of vector and raster layers (ECW) and some of the vector have a transparency setting. I've trying turning off the transparency to see if it is having an affect but still getting the same output, so it doesn't seem to be related. See image attached.enter image description here

enter image description here

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  • I might have a similar problem. When I export to PDF, the scalebar block goes OK but the numeric units seem to be "left behind". The Atlas preview done before the export appears just fine with the units showing. Using QGIS 3.0.2 on Windows10 Pro 64-bit.
    – Bill C
    May 26, 2018 at 5:29
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    @GrahamDee63, Did you ever resolve this issue? Was it version-specific or does it persist into current versions of QGIS?
    – csk
    Dec 9, 2019 at 17:31
  • @csk, Sorry, it's been sometime and I don't recall if I ever fixed the issue?
    – GrahamDee63
    Dec 10, 2019 at 23:35
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    Fair enough. The system bumped your question up to the front page so I thought I'd ask.
    – csk
    Dec 11, 2019 at 2:40

2 Answers 2

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Which version of QGIS are you using ? It's maybe not the most appropriate answer for your case but I solved most (let's say all) of these problems using the 64 bit version of QGIS.

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This is a know issue coming from Qt. Since exporting relies on a single QPainterthe requested export can hit the limitation ( https://doc.qt.io/qt-6/qpainter.html#limitations ). The solution may be to lower the resolution or fix/fund a fix to stich images when it exeeds the size limitation of QPainter.

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