How to check if a PDF page is blank?

[zorro-lp]

Hi. I want to check if a PDF page is blank. I start with looking into the result of pdfReader.parsePageDictionary(pageIndex).toJSObject().Resources.
I guess it is blank if pdfReader.parsePageDictionary(pageIndex).toJSObject().Resources.toJSObject().XObject is undefined but I am not sure. Please advise.
Thanks.

[julianhille]

Hey. What do you mean with blank?

• a page without any element?
• a page that seems to be blank to the eye? Ex. White page with a white box on it (invisible to the eye).

Just making sure we have the same understanding here.

[zorro-lp]

Hi. I mean a page without any element.

[julianhille]

I am currently sick I'll have a look when healthy again

[julianhille]

Would you mind sending / adding a sample file, this does not work on the sample i've got here

[zorro-lp]

blank.pdf

[julianhille]

you have a very valid point, i'm unable to find a way to say if a page is empty or not.
empty.pdf
look at this file with your snippet, this feels pretty odd.

[zorro-lp]

Thanks anyway :)

[julianhille]

I maybe need to expose some c++ functionality which goes over the xobject or so. will take some time.