Any ideas why RenderPageToGdPictureImage would start to fail, but then successfully process after (the same file/files) after an App Pool restart?
Feels like it is memory related if it clears up after a restart? Any pointers or tips to look at around why it would fail over time, but succeed after a restart?
This is a Web App running in an Azure App Service
RenderPageToGdPictureImage (PDF to TIFF) Fails unexpectedly, but works after App Restart
Re: RenderPageToGdPictureImage (PDF to TIFF) Fails unexpectedly, but works after App Restart
Hi there
Thanks for your question however the information here is insufficient.
Feel free to contact us here with more information so we can help you:
https://orpalis.zendesk.com/hc/en-us/requests/new
Providing a code project isolating the issue for us to reproduce would be great for us to investigate the issue further.
Regards,
Hugo
Thanks for your question however the information here is insufficient.
Feel free to contact us here with more information so we can help you:
https://orpalis.zendesk.com/hc/en-us/requests/new
Providing a code project isolating the issue for us to reproduce would be great for us to investigate the issue further.
Regards,
Hugo
Re: RenderPageToGdPictureImage (PDF to TIFF) Fails unexpectedly, but works after App Restart
Here is the method that fails - and it fails on RenderPageToGdPictureImage - however, after simply restarting the web app - it works again. It seems as though we have to restart 1-2x daily and we have not been able to directly replicate
Code: Select all
protected bool ConvertPdfToTiff( Stream stream )
{
try
{
GdPictureStatus status = PdfImaging.LoadFromStream( stream );
if( status != GdPictureStatus.OK )
throw new InvalidOperationException( "ConvertPdfToTiff: Does not appear to be a valid PDF stream." );
for( int i = 1; i <= PdfImaging.GetPageCount(); i++ )
{
PdfImaging.SelectPage( i );
int rasterizedImageId = PdfImaging.RenderPageToGdPictureImage( 200, true, PixelFormat.Format32bppPArgb, PdfRasterizerEngine.PdfRasterizerEngineGdiplus );
if( rasterizedImageId == 0 )
throw new InvalidOperationException( "ConvertPdfToTiff: Unable to render PDF page to TIFF." );
if( ImageId <= 0 )
ImageId = PictureImaging.TiffCreateMultiPageFromGdPictureImage( rasterizedImageId );
else
PictureImaging.TiffAppendPageFromGdPictureImage( ImageId, rasterizedImageId );
PictureImaging.ReleaseGdPictureImage( rasterizedImageId );
}
return ImageId > 0;
}
catch( Exception exception )
{
Logging.Logging.LogException( exception );
return false;
}
}
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