Debenu Quick PDF Library - PDF SDK Community Forum : Word’s bounds http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 01 May 2026 06:38:20 +0000 Sat, 18 Nov 2006 14:19:05 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=565 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Word’s bounds : Hi Dimitry! I don&#039;t know...]]> http://www.quickpdf.org/forum/words-bounds_topic565_post2535.html#2535 Author: Ingo
Subject: 565
Posted: 18 Nov 06 at 2:19PM

Hi Dimitry!

I don't know much enough about pdf ;-)
My thoughts are: You have the beginning point (pixel) of the string and you have the ending point (pixel) of the string... and you can get the length of the string... i think with a bit maths it should be possible to get the position of a special word you're searching for...?

Best regards,
Ingo


Edited by Ingo]]> Sat, 18 Nov 2006 14:19:05 +0000 http://www.quickpdf.org/forum/words-bounds_topic565_post2535.html#2535 <![CDATA[Word’s bounds : BTW, I just develope the next...]]> http://www.quickpdf.org/forum/words-bounds_topic565_post2533.html#2533 Author: Dmitry
Subject: 565
Posted: 18 Nov 06 at 4:32AM

BTW, I just develope the next algorithm


ASentence := Text; //Sentence
AWord := ErrorWord; // The word that needs to be underlined
WPos := Pos(AWord, ASentence);
BefWord := Copy(ASentence, 1, WPos-1);
AfWord := Copy(ASentence, 1, WPos+Length(AWord));

BM:= TBitmap.Create; // Creating bitmap
BM.Canvas.Font.Name:=FontName;
BM.Canvas.Font.Size:=FontSize;

WordBeginPos:=(BM.Canvas.TextWidth(BefWord));
WordEndPos:=(BM.Canvas.TextWidth(AfWord));
Afword:=IntToStr(WordEndPos);

LTop := LineBounds.LeftTop.Y;
LLeft := LineBounds.LeftTop.X+4;

Qp.SetLineColor(1,0,0); // red
Qp.DrawLine(LLeft+WordBeginPos,LTop,LLeft+WordEndPos,LTop);


But this method defines the wrong begin and end positions of the AWord.

Edited by Dmitry]]> Sat, 18 Nov 2006 04:32:54 +0000 http://www.quickpdf.org/forum/words-bounds_topic565_post2533.html#2533 <![CDATA[Word’s bounds : Thanks to all. But what will say...]]> http://www.quickpdf.org/forum/words-bounds_topic565_post2530.html#2530 Author: Dmitry
Subject: 565
Posted: 18 Nov 06 at 12:13AM

Thanks to all. But what will say Ingo? ]]> Sat, 18 Nov 2006 00:13:18 +0000 http://www.quickpdf.org/forum/words-bounds_topic565_post2530.html#2530 <![CDATA[Word’s bounds : The PDF Specification allows...]]> http://www.quickpdf.org/forum/words-bounds_topic565_post2529.html#2529 Author: swb1
Subject: 565
Posted: 17 Nov 06 at 10:43AM

The PDF Specification allows for a virtually unlimited number of ways in which text can be laid out in a document all the way from one character at time to a paragraph wrapped down an entire page. This means that is nearly impossible to know for certain where a word is or that it even is a word using text extraction methods.

 

The easiest solution to your problem lies in controlling how the document is created. If you have no control over that you are probably out of luck.

]]> Fri, 17 Nov 2006 10:43:55 +0000 http://www.quickpdf.org/forum/words-bounds_topic565_post2529.html#2529 <![CDATA[Word’s bounds : Hi Dmitry, As far as I know:...]]> http://www.quickpdf.org/forum/words-bounds_topic565_post2528.html#2528 Author: ukobsa
Subject: 565
Posted: 17 Nov 06 at 10:22AM

Hi Dmitry,

As far as I know: If GetPageText cannot split the text to single words then you can't. Maybe you can make the pdf available so that someone can debug it in source to see, why it can't splitt into single words and if there is a solution.

best regards,
Uli]]> Fri, 17 Nov 2006 10:22:01 +0000 http://www.quickpdf.org/forum/words-bounds_topic565_post2528.html#2528 <![CDATA[Word’s bounds : Hi! Please tell me how to define...]]> http://www.quickpdf.org/forum/words-bounds_topic565_post2522.html#2522 Author: Dmitry
Subject: 565
Posted: 17 Nov 06 at 5:28AM

Hi!
Please tell me how to define bounds(in pixels) of exact word.

For example.
I could get the bounds of exact line using function GetPageText(4):

"PDMFNG+CMR10", {Font}
#000000, {Color}
10.90, {Font Size}
72.0009,628.7132,512.1819,628.7132,512.1819,639.6223,72.0009,639.6223, {Bounds}
"Although there is a long history of empirical research into the deformation behaviour of" {Text line}

But how can I define the bounds of word 'history' for example?

Edited by Dmitry]]> Fri, 17 Nov 2006 05:28:05 +0000 http://www.quickpdf.org/forum/words-bounds_topic565_post2522.html#2522