On Wed, Dec 4, 2019 at 9:39 AM L. E. Segovia
Hello,
I would like to report that since TeX Live 2019, LuaTeX is unable to embed properly a certain type of image I have. These sort of images are embedded in the PDFs generated by the tool "Comprobantes en línea" of Argentina's IRS (Administración Federal de Ingresos Públicos, https://www.afip.gob.ar).
This is an example:
https://comunadealvear.gob.ar/wp-content/uploads/2017/03/30710518803_01_0002... (or just search online for the string "Esta Administración Federal no se responsabiliza por los datos ingresados en el detalle de la operación").
Embed this file using the following snippet:
\documentclass{article} \usepackage{luatex85} \usepackage{incgraph}
\begin{document} \incgraph{30710518803_01_0002_00000009.pdf} \end{document}
Where the white-and-grey AFIP logo appears in the original, LuaTeX instead embeds a grey-on-grey image, probably by messing with the alpha channel.
I have consistently reproduced this on every update since the 2019 release. XeLaTeX and pdfTeX do not have this issue.
Please let me know if I can be of more assistance. I hope I've posted to the right mailing list.
Best regards,
Leonardo
-- Leonardo E. Segovia https://www.amyspark.me
Confirmed, thank you very much for the report. We will fix it asap. -- luigi