Hi all,I use iTextSharp to add an image at the top of some existing pdf document.The image is a QR code image.
You say it's an image, as if you were talking about an Image XObject.
In reality, it's not an Image XObject, but a Form XObject. Big difference!
In another function I’ve got to extract this image and decode.The library works fine at the document production stage but fails when extracting images.
That's because there's no Image XObject.
It seems that all the images with PixelFormat 8 can’t be extracted, while 24 PixelFormat image extraction work well.
I have no idea what you mean by PixelFormat 8 and 24 PixelFormat.
This is true also producing the QR code via iTextSharp library too.Someone can help me?
Please read ISO-32000-2 on the difference between Image XObjects and Form XObjects.
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