Not able to save Unprotected .pdf file

Aspose.PDF Product Family
1

Sample Code:
Aspose.Pdf.License pdfLicense = new Aspose.Pdf.License();
pdfLicense.SetLicense(“Aspose.Total.NET.lic”);
var fs = new FileStream(@“00000203600003_00000.pdf”, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
Aspose.Pdf.Document document = new Aspose.Pdf.Document(fs,“test1”);
document.Save(@“UnProtected.pdf”);

You can find.pdf file in the attachment.
00000203600003_00000.pdf (44.7 KB)

3

@hemalp
When I checked in windows 10 under .Net 6 with the library version 23.12, the save passed.
I can’t evaluate the result because the file is password protected.
The attached file was generated when working without connecting a license.
UnProtected.pdf (129.2 KB)

What environment are you running the code in?

4

I am using .Net Framework 4.8 and Aspose.Pdf version 23.8.0.0.

5

@sergei.shibanov just open your attached file UnProtected.pdf, File is saved as password protected.

My goal is save this as unprotected pdf.

Sample Code:
Aspose.Pdf.License pdfLicense = new Aspose.Pdf.License();
pdfLicense.SetLicense(“Aspose.Total.NET.lic”);
var fs = new FileStream(@“00000203600003_00000.pdf”, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
Aspose.Pdf.Document document = new Aspose.Pdf.Document(fs,“test1”);
document .ChangePasswords(“test1”, “”, “”);
document.Save(@“UnProtected.pdf”);

Throw exception like: Security properties can’t be changed because provided owner password is not true owner password.

How can I handle Exception.

6

@hemalp
For this you can use next code

var fs = new FileStream(dataDir + @"00000203600003_00000.pdf", FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
var document = new Aspose.Pdf.Document(fs, "test1");            
document.Decrypt(); // instead document.ChangePasswords("test1", "", "");
document.Save(dataDir + @"UnProtected.pdf");