FreeSpire.PDF always shows RotateAngle270

[Adam.Gilmore]

I'm having trouble trying to properly rotate serveral pages in a PDF document. Some are upside down or sideways (left or right). For some reason the starting rotation is always RotateAngle270 and when I attempt to apply the following logic it does not change the rotation.

int rotation = (int)p.Rotation;
rotation += (int)PdfPageRotateAngle.RotateAngle270;
p.Rotation = (PdfPageRotateAngle)rotation;

Any insight into what I am doing wrong?

Code: Select all

PdfDocument doc = new PdfDocument();
doc.LoadFromFile(pdfFile);
foreach (PdfPageBase p in doc.Pages)
{
    int rotation = (int)p.Rotation;
    rotation += (int)PdfPageRotateAngle.RotateAngle270;
    p.Rotation = (PdfPageRotateAngle)rotation;
}
doc.SaveToFile(currentFolder + "\\cleaned.pdf");
doc.Close();


Regards,
Adam

[Jane.Bai]

Hello,

Thanks for your post.
Sorry that I don't reproduce the issue. To help us look into it, could you please share your sample document?

Sincerely,
Jane
E-iceblue support team

[Adam.Gilmore]

Hi Jane,

Please see attached PDF.

How do I determine programatically what rotation the picture is facing (left, right, upside-down) and then rotate it so it looks like the image on page 2? If the image is currently rotate properly, there is no need to apply any rotation logic since it is already correct.

Regards,
Adam

[Jane.Bai]

Hello,

Thanks for your document.
Sorry that there's no way to judge as well as manipulate the rotation of an image.
Only rotating the whole page is available.
Regarding your case, the only solution is to make the page rotation the same as the image rotation, then rotate the page.

Sincerely,
Jane
E-iceblue support team

[Adam.Gilmore]

Thanks! I haven't tested this yet, but wouldn't rotating the page also rotate the image with it? This would still leave the image facing the wrong direction?

[Jane.Bai]

Hello Adam.Gilmore,

Yes, rotating the page would also rotating all the content in this page, so I suggest put the image in the same rotation as the page manually first and then rotate the page.

Sincerely,
Jane
E-iceblue support team