Hi I am using Windows.Data.Pdf.PdfDocument to load and save pdf's but for certain pdf we are not able to render using the native code. I have provided a sample that saves pdf's faulty rendered first page and save as image locally(Link for sample : ** https://1drv.ms/u/s!AkHAdPCJCT87i107crOeHYGiPPyt?e=gOdBxf**. ) I have also provided the pdf which is not rendered properly and image of faulty rendered and correctly rendered pdfs ` 242857-literaturservice-herzklappentag.pdf Do we have any work around for this type of pdf to render?

Hello, Welcome to Microsoft Q&A! Do we have any work around for this type of pdf to render? First of all, yes, this behavior is related to these kind of PDF file. These PDF files might use some PDF features that the native UWP API does not support. So the PDF API can't render the blue part of the Page. Currently, a workaround for this is to convert the specific PDF file to a new PDF file by browser. You could open your PDF file in Edge and printed it as a new PDF file. This might convert the blue part of the PDF file into a big image which could be rendered by the PDF API. So when opening the new PDF file, the app could generate the image correctly. Thank you. If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Cannot use specific Pdf document.

Accepted answer

Roy Li - MSFT 32,921 Reputation points Microsoft Vendor

2022-09-20T10:02:42.157+00:00

Hello,

Welcome to Microsoft Q&A!

Do we have any work around for this type of pdf to render?

First of all, yes, this behavior is related to these kind of PDF file. These PDF files might use some PDF features that the native UWP API does not support. So the PDF API can't render the blue part of the Page.

Currently, a workaround for this is to convert the specific PDF file to a new PDF file by browser. You could open your PDF file in Edge and printed it as a new PDF file. This might convert the blue part of the PDF file into a big image which could be rendered by the PDF API. So when opening the new PDF file, the app could generate the image correctly.

Thank you.

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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Manoj Kumar 21 Reputation points

2022-09-21T05:03:22.907+00:00

Hi Roy-Li
I would able to load the converted pdf in Windows.Data.Pdf.PdfDocument API to save and to open in app correctly. But my requirement is to render that specific PDF with the help of API's that are available with Windows.Data.Pdf API's could you please help me to achieve it.

Roy Li - MSFT 32,921 Reputation points Microsoft Vendor

2022-09-21T05:22:03.15+00:00

I have to say that currently there is no way to achieve this if you are using the specific PDF file. If it is acceptable, you could try to find if there are other third party libraries that you could use in your app.
Also, you could raise a feedback about this API in the Feedback Hub to report this behavior. You could find the Feedback Hub in the Start Menu. Please select Developer Platform->API Feedback as the category when you submit your request. The related team will check the request.

Manoj Kumar 21 Reputation points

2022-09-21T06:11:51.48+00:00

hi @Roy Li - MSFT
I was unable to send feedback using feedback hub app in start menu could you suggest me some other site to report this issue?

Roy Li - MSFT 32,921 Reputation points Microsoft Vendor

2022-09-21T09:12:16.657+00:00

If you still need to technical support about this issue, please open a support ticket for this. Please contact our paid phone support at MS Support. You will get 1:1 support on that. Select Developer Tools -> Windows UWP Development -> Windows 10 Universal App Dev -> Graphics and Multimedia Development-> PDF API in the support page and you could contact the team. Please kindly note that your support ticket will be free if it is Microsoft's issue.

Manoj Kumar 21 Reputation points

2022-09-21T11:46:51.02+00:00

Thank you @Roy Li - MSFT

Manoj Kumar 21 Reputation points

2022-09-30T07:04:26.843+00:00

Hi @Roy Li - MSFT
Our clients are having problems with several similar PDFs. Therefore, it won't help us in the long term to open it in Edge and then re-save it. Will you be able to let us know which PDF features the PdfDocument API doesn't support? When we are aware of which PDF features are not supported, we can advise our clients to not use those features going forward when they are creating these PDFs.
Regards
Manoj

Roy Li - MSFT 32,921 Reputation points Microsoft Vendor

2022-09-30T08:54:27.783+00:00

I‘ve to say that I'm not sure which features are the reason for this behavior. If we need to figure this out, we might need further technical support about this. Just like I mentioned in my pervious comment. Please open a paid support ticket for this and you could talk directly with the team. Your support ticket will be free if it is Microsoft's issue
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