TfrxPDFExport - EZCompressionError with message 'Invalid ZStream operation!' in Delphi 11 & 2021.3

jdredd · September 2021

Using the latest Delphi 11.

Using Version 2021.3

I have been using the TfrxPDFExport for years.

The code has

frxPDFExport.Compressed := true;

If I leave this, I get an error

Project CMW.exe raised exception class EZCompressionError with message 'Invalid ZStream operation!'.

Setting this to FALSE makes everything happy.

If I re-run the same program in Delphi 10.2.3 using VCL 6 Pro Version 6.9 no problem.

jdredd · September 2021

This possibly related to this log maybe?

dejansild · November 2021

I have same error in same situation, FastReport Enterprise 2021.3.1 version.

gpi · November 2021

Disable debugging or export to pdf without Compressed option during debugging

lukaszdem · July 2022

New version 2022.2.8 not fixing this problem :(.

Error occurs under IDE in Debug mode.

Disabling the Compressed option when exporting to pdf helps.

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