Printing quality

[fabiopires]

Hello,

I've been testing Spire.PDF to print a PDF receipt to a roller paper printer and I've noticed that the printing quality is worse than printing the same PDF file to the same printer with Adobe Reader.

Here is the code sample (C#).

Code: Select all

PdfDocument doc = new PdfDocument();
doc.LoadFromFile(pdfFileName);
doc.CompressionLevel = PdfCompressionLevel.None;
doc.PrinterName = szPrinter;
doc.PrintDocument.Print();


I even set the compression level to none, but it's still the same.

For instance, that PDF file contains a QR Code that can't be readed when the file is printed with Spire.PDF library. When printing with Adobe Reader it's OK.

Can anyone help me? Thank you in advance.

[Betsy.jiang]

Dear fabiopires,

Thanks for your inquiry.
If you are using older version of Spire.PDF, we firstly suggest upgrading to the latest Spire.PDF Pack(Hot Fix) Version:3.9.82 which has improvement. Hope this helps. After trying this version, if the problem still persists, please upload your input document here, or send it to us(Support@e-iceblue.com) via email. That would be helpful to investigate this issue.

Thanks,
Betsy
E-iceblue support team