c# - How to get values from textbox comments in pdf document -

i have pdf document, inside comments lists of 2 types : 1. rectangle 2. text box

i want values text boxes c# , itextsharp.

the text boxes , rectangles you're referring called annotations. annotations defined dictionaries , listed per page.

in other words: need create pdfreader instance , annots each page:

pdfreader reader = new pdfreader("your.pdf"); (int = 1; <= reader.numberofpages; i++) {     pdfarray array = reader.getpagen(i).getasarray(pdfname.annots);     if (array == null) continue;     (int j = 0; j < array.size; j++) {         pdfdictionary annot = array.getasdict(j);         pdfstring text = annot.getasstring(pdfname.contents);         ...     } } 

in above code sample, have pdfdictionary named annot, can extract contents. may interested in other entries (for instance name of annotation, if any). please inspect keys available in annot object in case contents entry isn't you're looking for.

replace dots whatever want text. pdfstring has different method reveal contents.

disclaimer: i'm original developer of itext (i assume people know this, once downvoted because didn't add disclaimer).