PdfContentEditor pdfContentEditor = new PdfContentEditor();
pdfContentEditor.BindPdf(enumerateFile.FullName);
// Replace text on all pages
pdfContentEditor.ReplaceText(“xxx”, “1111”); // throw System.IO.EndOfStreamException
// Save output PDF
pdfContentEditor.Save(Path.Combine(textBox4.Text, enumerateFile.Name));
We have worked with the data shared by you but we have not been able to reproduce it in our environment. Please check if this error appears with all files or if it is a file specific error. Also try commenting out the line of code containing ReplaceText method and observe whether the problem persists or not. In case the problem persists, please share your environment details with us.
Moreover, please note that Aspose.Pdf.Facades is an old model and soon it is going to be obsolete, which is why we always recommend to use DOM (Document Object Model) approach that is more advanced. So, please follow the DOM approach explained in the documentation article Replace Text in a PDF Document, instead of using ReplaceText method of Facades model.
It about 5% happened above error in my pdfs, also I try your DOM (Document Object Model) and got another error pdfDocument.Pages.Accept(textFragmentAbsorber); // throw System.NullReferenceException
q1: it is not a random error, for a special pdf, got error every time
q2:Even if there was no exception，the replace result was wrong// I have 4 chinese char ,replace 2 of them,result is some english char…
may be you can have a try to change your OS language to chinese
About 5% occurrences of the problem, you face this issue with every file but the issue does not appear 95 times out of 100 times. Please clarify if you are mentioning such a situation by saying 5%. Moreover, we have not been able to reproduce EndOfStreamException or NullReferenceException even after changing the OS Language to Chinese (Traditional , Hong Kong SAR). Kindly create a sample application reproducing these exceptions and share a ZIP file with us, so that we may investigate further to help you out.
Please ensure using Aspose.PDF for .NET 18.5 in your environment, and mention your environment details while sharing the source and generated PDF file that has incorrect replacement of 2 characters instead of 4 characters.
We have been able to reproduce the issues reported by you and following tickets have been logged in our issue management system for further investigation and resolution.
PDFNET-44692: For occurrence of NullReferenceException PDFNET-44693: For incorrect text replaced in generated PDF file
The ticket IDs have been linked with this thread so that you will receive notification as soon as the tickets are resolved.
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