Can I check for a %AI24_LargeCanvasScale comment?

[SSteve]

We are opening a customer's PDF file and the scale is 1/10th what they are writing from Illustrator. According to this blog post Illustrator writes the comment "%AI24_LargeCanvasScale: 10" when the user enables "large canvas mode". Is there any way to check for this comment when I open the document in PDFSharp? (Or is this already supported in 6.2? We're still using 1.50.)

[TH-Soft]

PDFsharp does not do anything with comments in PDF files beside the first comment that indicates the PDF version.

The blog post you linked shows how to read comments from PDF.