Cannot render QuickReports graphics

Hi,

I've found that I cannot print or render any graphics inserted on a QuickReport generated PDF.

Those same documents can be rendered by Acrobat and my program can render most documents but the ones I nedd to render

I've uploaded a sample on this link
On this document there is a copy of this site logo but when rendered by QuickPdf it appears as a garbled picture.

I would appreciate having some clue about this problem that is ruining a near finished program.

Thanks in advance.

Edited by JuanMaria

I'm still investiganting and I've found that if I edit the graphic -even if I only move it a little- with Acrobat and save the document it starts working on qpdf.

I've made a file comparation and it semms that Acrobat lefts the old picture and inserts a new one at the end of the document and it seems that this new one has no
/Filter [/ASCII85Decode /LZWDecode]

Might be that this is where QPDF fails?.

Is there any workaround?.

Thanks again.

I found that there are a number of problems with rendering. Some where the parameters for GDIplus calls are incorrect, others involving filters, and some where GDIplus fails to do the right thing. I do not think there is any work-around and the code to make the fixes requires GDIplus API knowledge. I have very little - so I will not attempt to tackle it until it is a direct problem for my applications.

 

sb

Thank you for your answers!

I finally solved the problem. Since I had little hopes working on the QuickPdf side of the problem, I started reading the QuickReport PDFFilter source looking for a way to eliminate the /LZWDecode filter.

It was easier than I suspected, the problem was that this filter is undoumented on the QuickReport manuals but after looking at the comentaries on the source file I learned that there was a boolean property named "compressionOn".

I had only to add a line to my source code and now it works smoothly I'll include it below in case someone else gests stuck with this problem.

qf := TQRPDFFilter.create(fn);
try
qf.CompressionOn := False; // That was the key
ExportToFilter(qf);          
finally
qf.Free;
end;

Hi,

TQRPDFFilter is part of the Quick Report package that you can get at http://www.qbss.com/