Group Blending Incorrect in Exported PDF

[Efvee 12]

Hello all,

I have encountered a bug where blending a group of layers results in an incorrect rendering when exported to PDF. This is using the latest stable version of Affinity Photo on Mac: 1.8.4

It seems to occur when a group of layers is set to semi-transparent and the group includes layers with blend modes (in this case Lighten). I have attached an Photo document and a PDF.

Sometimes the problem does not occur when different layers are active but I have not been able to track down why. This test case shows the problem in its most simple form.

Left: image in Photo. Right: Exported PDF.

star_test.afphoto star_test.pdf

[MEB 8,601]

Hi Efvee,
What PDF preset or custom settings are you using when exporting to PDF?

[Efvee 12]

Hello MEB,

I am using the PDF (for print) preset.

TNX

[MEB 8,601]

Hi @Efvee,
This is a bug in Apple Preview when transparencies/blending modes are used rather than in Affinity's PDF exporter. The file displays/renders correctly in Adobe Acrobat.