SaveToStream corrupting PDF

[crichardson@mmcnz.co.nz]

I am trialing out the Word to PDF conversion and I am struggling to save a word DOCX file to a stream as it always corrupts the PDF.

Attached is my relevant code:

Code: Select all

using (MemoryStream pdfDocument = new MemoryStream())
{
    Spire.Doc.Document doc = new Spire.Doc.Document(wordStream, Spire.Doc.FileFormat.Auto);
    doc.SaveToFile(Path.Combine(BulkEmailTemplateSavePath, fileName), Spire.Doc.FileFormat.PDF); //-Works producing PDF that is readable
    doc.SaveToStream(pdfDocument, Spire.Doc.FileFormat.PDF); //-PDF saved out later is corrupt
    attachmentsToAdd.Add(new KeyValuePair<string, byte[]>(fileName, pdfDocument.GetBuffer()));
}


I've tried combinations of saving the PDF to disk and to stream and I can't get the saving to stream working.

Thanks

[Nina.Tang]

Dear Craig,

Thanks for your inquiry.
Please replace the pdfDocument.GetBuffer() with the pdfDocument.ToArray(). If the issue still happens after replacing, please supply your input Word file as well as your full code for further investigation. You could send them to us via email (support@e-iceblue.com).

Sincerely,
Nina
E-iceblue support team

[crichardson@mmcnz.co.nz]

Thanks for that. That fixed the corrupt stream. I'm not sure why GetBuffer() and ToArray() produce different results though.

Anyway it is fixed.

Thanks,

Craig

[Nina.Tang]

Hello,

Thanks for your feedback.
The GetBuffer() method only gets the data of the buffer, but not all the data of the Pdf stream, that' why the generated Pdf has errors. If you have any confusion, just feel free to write back.

Sincerely,
Nina
E-iceblue support team

[s.shevyakov]

Hello, I have a similar problem when saving a doc document to a stream:

public async Task<FileModel> ConvertDocToPdfAsync(IFormFile file, string resultFileName)
{
Document document = new();
using (Stream stream = file.OpenReadStream())
using (MemoryStream targetStream = new())
{
document.LoadFromStream(stream, Spire.Doc.FileFormat.Auto);
document.SaveToStream(stream, Spire.Doc.FileFormat.PDF); -> error
return FileModel.Build(resultFileName, targetStream.ToArray());
}
}



"Message": "Specified method is not supported.",
"Data": null,
"InnerException": {
"$type": "System.NotSupportedException, System.Private.CoreLib",
"ClassName": "System.NotSupportedException",
"Message": "Specified method is not supported.",
"Data": null,
"InnerException": null,
"HelpURL": null,
"StackTraceString": " at Microsoft.AspNetCore.Http.ReferenceReadStream.Write(Byte[] buffer, Int32 offset, Int32 count)\r\n at System.IO.Stream.WriteByte(Byte value)\r\n at spr㚳.ᜂ(String A_0)\r\n at spr㚏.ᜅ(Stream A_0, spr㚞 A_1, Boolean A_2)\r\n

[Brian.Li]

Hello,

Thanks for your inquiry.
Please refer to the following modified code.

Code: Select all

                //document.SaveToStream(stream, Spire.Doc.FileFormat.PDF);
                document.SaveToStream(targetStream, Spire.Doc.FileFormat.PDF);

If there are any other issues related to our products, just feel free to contact us.

Sincerely,
Brian
E-iceblue support team