Spire.PDF is a professional PDF library applied to creating, writing, editing, handling and reading PDF files without any external dependencies within .NET ( C#, VB.NET, ASP.NET, .NET Core) application and Java (J2SE and J2EE) application.

Thu Jun 05, 2014 1:13 pm


I've been trying your product in order to convert PDF to Image files and it works great (version
When trying to work with the same version on Microsoft Azure Servers, I've been encountering the following error message:

"Parameter is not valid."

CovertToImage at System.Drawing.Bitmap..ctor(Int32 width, Int32 height, PixelFormat format)
at System.Drawing.Bitmap..ctor(Int32 width, Int32 height)
at Spire.Pdf.PdfDocumentBase.ᜀ(Int32 A_0)
at Spire.Pdf.PdfDocument.SaveAsImage(Int32 pageIndex)
at CovertToImage(String pdfPath)

I tried upgrading to a newer version (Spire.PDF.dll - but the image returned is missing alot of compnents from the pdf file and the error above is not resolved.


Posts: 1
Joined: Thu Jun 05, 2014 12:26 pm

Fri Jun 06, 2014 2:29 am


Thanks for your feedback.
The Microsoft Azure Servers is website? If so, our suggestions is to use Azure Cloud Service or VM instead of it as the GDI is not supported on Azure Shared WebSite.
Regarding the issue(the image returned is missing alot of compnents), could you please provide us your pdf file for testing?
E-iceblue support team
User avatar

Posts: 1380
Joined: Thu Apr 04, 2013 1:30 am

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