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RenderReport to PDF image quality problem

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Jeff
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Jeff asked on 26 Feb 2015, 03:32 PM
Hi, we're rendering a report in PDF format that contains a BMP image. We want the rendering to use the "Flate" algorithm so that the image is not compressed. We need to do that to keep as much detail as possible from the original image.

The image is contained in a PictureBox. We tried to set the PDF Dpi values to 600 dpi without any change in the rendered image quality.

Here's a sample code thta we use:

Telerik.Reporting.Processing.ReportProcessor reportProcessor = new Telerik.Reporting.Processing.ReportProcessor();
Telerik.Reporting.Processing.RenderingResult result = reportProcessor.RenderReport("pdf", instanceReportSource, null);

Is there a parameter that we can set to modify the Telerik PDF rendering so that it does not use the default color image compression ?



 

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Stef
Telerik team
answered on 03 Mar 2015, 10:29 AM
Hello Jeff,

On export in PDF format the image is rendered as Bitmap, the dpi device settings will not be applied on the image, the image will be rendered with 96dpi.

Feel free to use public feedback portal and log a feature request for such PDF device setting. Features are selected for implementation based on the demand for them.

Regards,
Stef
Telerik
 

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Ziga HABJAN
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answered on 16 Oct 2015, 10:01 AM
I've seen this problem on forums many times now. And right now, we have it as well.. Is there anything new about the issue - or does someone still need to log feature request? (We need images to be re-encoded to pdf with higher dpi).
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Stef
Telerik team
answered on 20 Oct 2015, 03:15 PM
Hello Ziga,

The PDF rendering uses standard 96dpi settings on rendering a report with images. For more details check Report quality on print and export.

Feel free to log a feature request elaborating on the use case and the required settings for the PDF rendering. Features are considered for implementation based on the demand for them.

Regards,
Stef
Telerik
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Ziga HABJAN
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