change background color of existing pdf file

[ZARA_kHAN]

how can i change bg color of existing multiple pdf file ..kindly share code with me

[Betsy.jiang]

Hi,

Thanks for your inquiry.
Please try to use following code:

Code: Select all

doc.Pages[0].BackgroundColor = Color.Yellow;

If there is still the issue, please share your input document and expected document for further investigation.

Sincerely,
Betsy
E-iceblue support team