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Extract Text form a text form field in pdf
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ju1989  
#1 Posted : Thursday, October 27, 2016 2:00:46 AM(UTC)
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Hi,

is there a possibility to extract the Text from a text form field in pdf. I don't need to change the text, but I need to get the text information (chars and boxes) from the attached document ( Document3.zip (17kb) downloaded 20 time(s).).

Thanks and best regards
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ju1989  
#2 Posted : Friday, November 11, 2016 12:45:06 AM(UTC)
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Is there any solution?
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Paul Rayman  
#3 Posted : Friday, November 11, 2016 5:04:51 PM(UTC)
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I'm not sure understanding your goals correctly, but

Textbox does not contain the Text object. So you can't extract it.
But you can extract the text string from field. Also you can get the bounding rect of that field.
If you need extract the bounding box of each character, you can select each character and then get a selection rectangle.

In both cases there is a problem. These techniques does not cover the situation when the text is scrolled inside a textbox
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ju1989  
#4 Posted : Monday, November 14, 2016 5:55:02 AM(UTC)
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ok, so I checked the PageObjects from the frist page of the uploaded document.

There is only one element in the collection which is an PdfTextObject with an space as text. But when rendering the page I see the text 'That's just a test!'. The Text-Property of the page is empty too.

So how do I get the text string 'That's just a test!' and the coordinates?
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Paul Rayman  
#5 Posted : Monday, November 14, 2016 2:38:25 PM(UTC)
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Could you please provide this pdf document?
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ju1989  
#6 Posted : Monday, November 14, 2016 11:56:12 PM(UTC)
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The document is attached to my first post.


Originally Posted by: ju1989 Go to Quoted Post
the attached document ( Document3.zip (17kb) downloaded 20 time(s).).
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Paul Rayman  
#7 Posted : Tuesday, November 15, 2016 2:54:21 AM(UTC)
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Originally Posted by: ju1989 Go to Quoted Post
The document is attached to my first post.


The document contains one PdfText object that is empty
and one AcroForm's field with "That's just a test!"
Thus this document contains two separate objects which are not same.

So you can get access to the field's text through following property.
Code:

var text = pdfViewer1.Document.FormFill.InterForm.Fields[0].Value;


But fields does not contains PdfText objects, so you can't extract them from field.

Edited by user Tuesday, November 15, 2016 2:58:48 AM(UTC)  | Reason: Not specified
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ju1989  
#8 Posted : Tuesday, November 15, 2016 3:12:33 AM(UTC)
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If I try this with the latest Pdfium.Net SDK the "FormFill" property is null. Is this a special property that's only set by the pdfViewer?
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Paul Rayman  
#9 Posted : Tuesday, November 15, 2016 4:13:57 AM(UTC)
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If you do not use PdfViewer, then you should load docment as shown below
Code:

var forms = new PdfForms();
var doc = PdfDocument.Load(@"d:\0\test.pdf", forms);

In this case you can get access to interactive forms via forms variable or doc.FormFill property.
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