Creating Text Searchable PDF with hocr file

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   Hi there,
Could someone please elaborate on the answer posed here.

"With the draw-functionalities of QP you can insert the real text
without having an eye on the layout. "

I am unsure what the mean by "without having an eye on the layout" as far as I can see the steps would have to parse the "hocr" files XML and calculate the position of the boxes described within relative to the document.

Am I missing something. Is there simple functionality written to parse HOCR data onto a PDF document?

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McHaigh Members Profile Find Members Posts Beginner Joined: 18 Jun 13 Status: Offline Points: 2	Post Options Post Reply Quote McHaigh Report Post Thanks(0) Quote Reply Topic: Creating Text Searchable PDF with hocr file Posted: 18 Jun 13 at 4:16PM
	Hi there, Could someone please elaborate on the answer posed here. "With the draw-functionalities of QP you can insert the real text without having an eye on the layout. " I am unsure what the mean by "without having an eye on the layout" as far as I can see the steps would have to parse the "hocr" files XML and calculate the position of the boxes described within relative to the document. Am I missing something. Is there simple functionality written to parse HOCR data onto a PDF document?

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3529	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 18 Jun 13 at 10:19PM
	...without having an eye on the layout... 'cause you draw the text right from scratch. The original layout you can post over the drawed text on a new layer/content group. So the first text is unvisible but extractable. Regarding hocr there was a hint: "Looking at Google" ;-) Cheers and welcome here, Ingo

AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(0) Quote Reply Posted: 20 Jun 13 at 4:15AM
	Hello, Debenu Quick PDF Library does not have any functions to process hocr files. Firstly you will need to turn the image into a PDF file by using AddImageFromFile to import the TIFF file that you have just OCR'ed. Then as you have said you will need to parse the XML based hocr files to calculate the x,y position and pointsize of the font. For each word you need to QP.SetTextMode(3); for i = 1 to ocr_wordcount do begin QP.SetTextSize(ocr_size); QP.DrawText(ocr_x, ocr_y, ocr_word); end; This will draw invisible text onto the PDF. It is this process that will make it searchable. Andrew.