PDFsharp & MigraDoc Foundation

Hi all,

I wrote a short script, adding text to all pages of a PDF.
Works great so far, but I have two issues:
One is, that my test is not added to a specific page, linked below.
If I print the PDF via the Windows PDF engine, I can add text, so there has to be something special with that page.
Can anyone tell me what the problem is here, and if there is a way to detect this and work around it?
The sample Page:
https://share.ancora-verlagsservice.de/ ... pP2Yb6xBbD

Second is, that the text is sometimes printed a bit different (you can see that in the attached files, the spacing between "66" and "22" is slightly different) in the same document.
This is clearly visible when turning the pages of a multipage document.
The pages have the same height and width.

Any ideas? I'm new to PDFsharp, so any advice is welcome.

Best wishes
Christoph

Here is my code that adds the text:

PdfDocument document = PdfReader.Open(inputPdfPath, PdfDocumentOpenMode.Modify);

foreach (PdfPage page in document.Pages)
{

XGraphics gfx = XGraphics.FromPdfPage(page);

XFont font = new XFont("Arial", 12);

double pageWidth = page.Width;
double pageHeight = page.Height;

XGraphicsState state = gfx.Save();

gfx.TranslateTransform(pageWidth - 12, pageHeight / 1.1);
gfx.RotateTransform(-90);

string verticalText = "Blub Blub, Bestellnummer RG5566224";
gfx.DrawString(verticalText, font, XBrushes.Black, new XPoint(0, 0));


gfx.Restore(state);
}

document.Save(outputPdfPath);

We no longer attempt to reproduce issues from supplied code snippets. Sorry.

See here:
https://docs.pdfsharp.net/General/Issue-Reporting.html

See here:
http://forum.pdfsharp.net/viewtopic.php?f=2&t=832

_________________
Best regards
Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)

Ok, didn't know - thanks for the answer, I'll provide you the code as described!

Issue #2:
The second page of the document has a TrimBox set ("X1=95.5276, Y1=170.079, X2=747.472, Y2=1020.92").
Make sure to draw your text within the margins of the trim box or it will be trimmed. No problem of PDFsharp.

With a small change, the text shows up:


Clean code must take the TrimBox into account, of course.

Issue #1:
At small zoom levels, Adobe Reader sometimes does funny things when displaying letters.
Issue does not show when PDF is viewed at high zoom levels. No problem of PDFsharp.

_________________
Regards
Thomas Hoevel
PDFsharp Team

Thank you very much for your support!
5 stars out of five