Spire.PDF is a professional PDF library applied to creating, writing, editing, handling and reading PDF files without any external dependencies. Get free and professional technical support for Spire.PDF for .NET, Java, Android, C++, Python.

Wed Apr 21, 2021 10:38 am

Hi, i have a licensed version of Spire.PDF v7.4.5 and i want to test if a page is blank.

I tryed 2 way but it return always false.

sample1:
Code: Select all
Spire.License.LicenseProvider.SetLicenseKey("my key");
var pdfDoc = new Spire.Pdf.PdfDocument(Spire.Pdf.PdfConformanceLevel.None);
var pdfPage = pdfDoc.Pages.Add(Spire.Pdf.PdfPageSize.A4, new Spire.Pdf.Graphics.PdfMargins(0), Spire.Pdf.PdfPageRotateAngle.RotateAngle0, Spire.Pdf.PdfPageOrientation.Portrait);
var isBlank = pdfPage.IsBlank(); //<--- false !!!


sample2:
Code: Select all
var filePath = @"c:\temp\out.pdf";
Spire.License.LicenseProvider.SetLicenseKey("my key");
var pdfDoc = new Spire.Pdf.PdfDocument(Spire.Pdf.PdfConformanceLevel.None);
var pdfPage = pdfDoc.Pages.Add(Spire.Pdf.PdfPageSize.A4, new Spire.Pdf.Graphics.PdfMargins(0), Spire.Pdf.PdfPageRotateAngle.RotateAngle0, Spire.Pdf.PdfPageOrientation.Portrait);
pdfDoc.SaveToFile(filePath);
pdfDoc.Close();
pdfDoc = new Spire.Pdf.PdfDocument(filePath);
isBlank = pdfDoc.Pages[0].IsBlank(); //<--- false !!!



what's wrong?
Thanks

cgamberini
 
Posts: 1
Joined: Mon Apr 19, 2021 2:48 pm

Thu Apr 22, 2021 9:49 am

Hello,

Thanks for your inquiry.
I did an initial test with Spire.PDF v7.4.5 and did reproduce your issue. I have logged it in our bug tracking system with the ticket SPIREPDF-4224. If there is any update, we will let you know. Apologize for the inconvenience caused.

Sincerely,
Brian
E-iceblue support team
User avatar

Brian.Li
 
Posts: 1271
Joined: Mon Oct 19, 2020 3:04 am

Sat May 08, 2021 2:48 am

Hello,

Glad to inform you that we just released Spire.PDF Pack(Hot Fix) Version:7.5.0 which fixes your issue, please download it from the following links to test on your side. Looking forward to your test result.
Website link: https://www.e-iceblue.com/Download/down ... t-now.html
Nuget link: https://www.nuget.org/packages/Spire.PDF/7.5.0

Sincerely,
Brian
E-iceblue support team
User avatar

Brian.Li
 
Posts: 1271
Joined: Mon Oct 19, 2020 3:04 am

Tue May 11, 2021 3:09 am

Hello,

Does this hotfix solve your issue? Could you please give us some feedback at your convenience?

Sincerely,
Brian
E-iceblue support team
User avatar

Brian.Li
 
Posts: 1271
Joined: Mon Oct 19, 2020 3:04 am

Return to Spire.PDF