Ngoc  Tai giao wrote
> I scan a ticket to pdf file (See attach file Doc1.pdf)In
> iTextSharp.text.pdf, I don't know how to capture hand written number 195
> on field "COUNTED QTY".

Your PDF on its single page contains merely a bitmap image. Thus, all you
can expect from a PDF library is that you can extract the image (which you
can easily do using iText(Sharp)).

If you need to interpret the image data (e.g. to find out what is written
somewhere on it), you will need appropriate image analysis software, e.g.
OCR software, and forward the image you already extracted to it. If you want
to insert the information returned from that image analysis software back
into the original PDF, you can once again use iText(Sharp).

Regards,   Michael



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