We're sorry Aspose doesn't work properply without JavaScript enabled.

Free Support Forum - aspose.com

PDF version 1.7 not converting into PDF version 1.4

Dear Support,

I have the PDF v1.7 document attached.

it not converting into PDF version 1.4 using the below code.

Document pdfDocument = new Document("version 1.7.pdf");

pdfDocument.Convert("convertlog.txt", PdfFormat.v_1_4, ConvertErrorAction.Delete);

pdfDocument.Save("version 1.4.pdf");


Please suggest me how to achieve this. i want all the PDF docuemnts converted to version 1.4.




Hi there,

Thanks for your inquiry. I've managed to reproduce the issue at my end and logged it as PDFNEWNET-35268 in our bug tracking system for further investigation and resolution. You will be notified via this thread as soon as it is resolved.

Sorry for the inconvenience faced

Best Regards,

Hi Tilal Ahmad,

I would like to know if any update on PDFNEWNET-35268.

Thank you...



Hi Selva,

Thank you for your patience. We have a good news for you above reported issue has been resolved and fix will be included in upcoming release of Aspose.Pdf for .NET 8.1. We will be notified you via this forum thread as soon as it gets available for download.

Best Regards,

The issues you have found earlier (filed as PDFNEWNET-35268) have been fixed in Aspose.Pdf for .NET 8.1.0.

This message was posted using Notification2Forum from Downloads module by Aspose Notifier.



Its working, thank you for your timely support



I think the conversion is done only halfway.

I am using same code to convert from PDF Version 1.5 to Version 1.3

opening the attached file with Nodepad++ shows that the file-header begins with

opening the converted file with Adobe Reader and viewing Pdf File-Properties (Menu File -> Properties -> (Description) shows "PDF Version 1.5 (Acrobat 6.x)"

So why does Adobe show PDF Version 1.5 instead of Version 1.3 ?

Hi Markus,

Thanks for your inquiry. I have tested the scenario with shared document using Aspose.Pdf for .NET 11.3.0 and managed to observe the reported issue. For further investigation, I have logged an issue in our issue tracking system as PDFNEWNET-40359 and also linked your request to it. We will keep you updated via this thread regarding the issue status.

We are sorry for the inconvenience caused.

<span style=“font-size:10.0pt;font-family:“Arial”,“sans-serif”;mso-fareast-font-family:
mso-bidi-language:AR-SA”>Best Regards,

any news on the bug I reported a year ago?

Hi Markus,

Thanks for your patience.

I am afraid the earlier reported issue is not yet resolved. However we have intimated the product team to share the current plans regarding its resolution and as soon as we have some further updates, we will let you know.

We are really sorry for this delay and inconvenience.

Hi Markus,

Thanks for your patience.

We have further investigated the earlier reported PDFNET-40359 and as per our observations, it seems Acrobat have problem with recognizing this file version(bug). Please re-save data1.pdf via Acrobat(Save as) and result will successful.