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Aspose.pdf for .NET - PDF to TIF conversion not capturing checkmarks in boxes

We have run into a problem with our conversion. This suddenly started happening last week and we’re not able to find out the root cause. All of our PDF’s that have been run through the conversion process are missing the check marks in the boxes when viewed as TIF files. I have attached a file that we are using. We have made no changes to the Aspose environment, but something changed. Vendor swears no changes were made to the version of PDF or anything else in the files being sent to us. Please help, this has become quite urgent.

Hi Randy,

Thanks for your inquiry. While testing the scenario with Aspose.Pdf for .NET 9.1.0, we are unable to noticed the reported issue. If you are using some old API version, then please download and try latest version of Aspose.Pdf for .NET and if issue persist then please share your sample code here, so we will investigate it and will provide you more information accordingly.

PdfConverter object and bind input PDF file

PdfConverter pdfConverter = new PdfConverter();

// create Resolution object with 300 as an argument

Aspose.Pdf.Devices.Resolution resolution = new Aspose.Pdf.Devices.Resolution(300);

// specify the resolution value for PdfConverter object

pdfConverter.Resolution = resolution;

// bind the source PDF file

pdfConverter.BindPdf(myDir + "California+Test+File.pdf");

// start the conversion process


//create TiffSettings object, set Compression and ColorDepth

TiffSettings tiffSettings = new TiffSettings();

tiffSettings.Compression = CompressionType.LZW;

//tiffSettings.Depth = Aspose.Pdf.Devices.ColorDepth.Format1bpp;

//convert to TIFF image

//pdfConverter.SaveAsTIFF(myDir + "page_1_Fac.tif", 600, 600, tiffSettings);

//pdfConverter.SaveAsTIFF(myDir + "PDFtoTIFF_4bpp.tiff", tiffSettings);

pdfConverter.SaveAsTIFF(myDir + "PDFtoTiff_Fac.tiff", tiffSettings);

// close Converter object


Best Regards,

Thanks for trying. We’ve been able to do some more research. I have attached another PDF, this one with different check marks. I submitted the wrong one previously. When we run this file on our server, it does not convert the checkmarks. However, when we run it locally on our desktops, it does indeed bring over the checkmarks. It’s just on our server that it doesn’t, which is strange. the 2 forms that are being converted use different check marks.

An update… We have downloaded the 9.1 version of the API and our test is working.

Hi Randy,

Thanks for sharing the feedback.

From your recent reply, it appears that after upgrading your server to Aspose.Pdf for .NET 9.1.0, the problem is removed and PDF to TIFF conversion is working fine. In case you are still facing any issue, please feel free to contact.