Some PDF files are not rendered..

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   Hi,
I have two PDF files, when I render them using DEBENU API: QP.RenderPageToFile(50,1,0,"pdfimage.bmp"); , it creates empty BMP file, with out any picture in it. They are single paged PDF files, and its size:17 MB, 19 MB respectively. 
When it is rendered with DPI Value=100, it generates blank white image with dimension: 5284 x 3311, and its bitmap depth is : 24.

Same PDF file, when it is viewed using Adobe Reader, it displays the picture with good quality.

Are there any alternative ways, to get picture using DEBENU API.

I am using DEBENU 12.11 version, and the tool is integrated with WIN32 API and C++.

Regards
Lakkan 

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lakkan Members Profile Find Members Posts Senior Member Joined: 10 Dec 15 Location: Bangalore Status: Offline Points: 53	Post Options Post Reply Quote lakkan Report Post Thanks(0) Quote Reply Topic: Some PDF files are not rendered.. Posted: 28 Oct 16 at 10:03AM
	Hi, I have two PDF files, when I render them using DEBENU API: QP.RenderPageToFile(50,1,0,"pdfimage.bmp"); , it creates empty BMP file, with out any picture in it. They are single paged PDF files, and its size:17 MB, 19 MB respectively. When it is rendered with DPI Value=100, it generates blank white image with dimension: 5284 x 3311, and its bitmap depth is : 24. Same PDF file, when it is viewed using Adobe Reader, it displays the picture with good quality. Are there any alternative ways, to get picture using DEBENU API. I am using DEBENU 12.11 version, and the tool is integrated with WIN32 API and C++. Regards Lakkan

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 28 Oct 16 at 6:31PM
	Hi, if the dimensions are as large as described i would try a another image-format to save storage. Please read here about gdi+ and other render engines (is gdi+ on your system?): http://www.debenu.com/docs/pdf_library_reference/RenderPageToFile.php Here is a "how to" from the Debenu-kb: http://www.debenu.com/kb/use-rendering-printing-add-debenu-quick-pdf-library/ Here is a render sample with scaling (good if you have large images as described): http://www.debenu.com/kb/render-a-pdf-as-an-image-with-an-asymmetrical-dpi/ This isn't exactly for your problem but it will help, too: http://www.debenu.com/kb/programmatically-render-pdf-files-in-windows-forms-with-net-and-c/ You should check always the returning values from the functions to determine where's the problem. Good luck ;-) BTW: I've got this all from the debenu support pages - you should be able to do this by your own ;-)
	Cheers, Ingo

lakkan Members Profile Find Members Posts Senior Member Joined: 10 Dec 15 Location: Bangalore Status: Offline Points: 53	Post Options Post Reply Quote lakkan Report Post Thanks(0) Quote Reply Posted: 01 Dec 16 at 10:05AM
	Hi Ingo, Thanks for the information. It was useful. I could able to fix the rendering issue. Lakkan Edited by lakkan - 01 Dec 16 at 10:05AM