Setting custom DPI values using Aspose.Slides

Aspose.Imaging Product Family
1

Dear Team,
I tried to convert image(tiff/ jpeg/ png) to PDF by setting custom dpi resolution value as 300dpi. The image had been converted into pdf but the conversion failed to set dpi resolution value as 300 dpi.
kindly provide a workaround solution.

Attached input file:
DPI Issue.zip (1.4 MB)
Code used:

Image image = (Image)Image.load(dataDir);
PdfOptions pdfOptions = new PdfOptions();
ResolutionSetting rs=new ResolutionSetting();
rs.setHorizontalResolution(300);
rs.setVerticalResolution(300);
pdfOptions.setResolutionSettings(rs);
dataDir = fileNameWithOutExt+".pdf";
image.save(dataDir,pdfOptions);

1 Like
2

@resh05,

I have observed your comments. Can you please visit this thread link. This will help you out in this issue. Please share feedback with us if there is still an issue.

3

Hi @Adnan.Ahmad
I tried the above thread(DPI Issue - #2 by Adnan.Ahmad) you posted but was unable to get the expected output.
Above thread only gives the changes in image width,height and dpi value is automatically applied but i need to set different dpi value for different images

4

@resh05,

I like to inform that i have worked with your issue in detail. Can you please share more sample files along with generated result for testing purpose. Also please explain your issue in more details.

5

@resh05,

Please visit this thread link. I have shared sample code that will help you to achieve your requirements.

6

Dear @Adnan.Ahmad
Thanks for the code,it works fineā€¦
My question is could we increase or decrease the dpi value for an image? If yes, then could you please provide me a workaround solution.
Attached sample:
12.jpg (17.7 KB)
Thanks

7

@resh05,

I like to inform that we can change dpi value for PDF but for JPG image we have to investigate this on our end. A ticket with ID IMAGINGJAVA-1405 has been created in our issue tracking system. We will share good news with you soon.

8

Dear @Adnan.Ahmad
Thank you :blush:

9

@resh05,

You are very welcome.

1 Like
10

@resh05,

Can you please check following code and share feedback with us if this solution satisfy you.

RasterImage image = (RasterImage)Image.load(ā€œ12.jpgā€);
try
{
Assert.assertEquals(image.getHorizontalResolution(), 96.0, 0.001, ā€œHorizontal resolution must be equals 96 dpiā€);
Assert.assertEquals(image.getVerticalResolution(), 96.0, 0.001,ā€œVertical resolution must be equals 96 dpiā€);
image.setHorizontalResolution(300);
image.setVerticalResolution(300);
image.save(ā€œoutput.jpgā€);
}
finally
{
image.close();
}

image = (RasterImage)Image.load(ā€œoutput.jpgā€);
try
{
Assert.assertEquals(image.getHorizontalResolution(), 300.0, 0.001, ā€œHorizontal resolution must be equals 300 dpiā€);
Assert.assertEquals(image.getVerticalResolution(), 300.0, 0.001, ā€œVertical resolution must be equals 300 dpiā€);
}
finally
{
image.close();
}

11

Hi @Adnan.Ahmad
The code works fine.
Thank Youā€¦

12

@resh05,

You are very welcome.