Extract text next to a Tag field

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I am looking to trial QuickPDF to see if it can extract text values from a medical report as follows:

Exam Date: 23/11/2011     DOB: 26/03/1966     MRN: C1234567

Referring Dr: A, Smith      Sonographer: G Perry

etc....

The idea is to locate certain predefined Tag Fields in bold and then read the text value next to them.

eg. I would use some QuickPDF function to search for the Tag Exam Date: and then read in the text value right next to this (23/11/2011).

Is this something that QuickPDF can do and what function would I call?

Thanks Chris.

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
chrisreed Members Profile Find Members Posts Team Player Joined: 29 Apr 13 Location: Australia Status: Offline Points: 35	Post Options Post Reply Quote chrisreed Report Post Thanks(0) Quote Reply Topic: Extract text next to a Tag field Posted: 29 Apr 13 at 6:42AM
	I am looking to trial QuickPDF to see if it can extract text values from a medical report as follows: Exam Date: 23/11/2011 DOB: 26/03/1966 MRN: C1234567 Referring Dr: A, Smith Sonographer: G Perry etc.... The idea is to locate certain predefined Tag Fields in bold and then read the text value next to them. eg. I would use some QuickPDF function to search for the Tag Exam Date: and then read in the text value right next to this (23/11/2011). Is this something that QuickPDF can do and what function would I call? Thanks Chris.

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 29 Apr 13 at 7:30AM
	Hi Chris! This looks as if the "tag-text" is always at the same place. In this case you can use the extract functionalities. They offer an additional option to extract text with position data. So it's possible for you to determine detailed the string position you wanna see. Another point of view: Search with "pos" (=Delphi) through the extracted textcontent of a page for your tags and take the text following behind. This function you can use for my my ideas: http://www.quickpdflibrary.com/help/quickpdf/GetPageText.php Cheers and welcome here, Ingo Edited by Ingo - 29 Apr 13 at 7:30AM

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: 29 Apr 13 at 7:47AM
	Chris, As Ingo suggests, the easiest option to get working would be to use GetPageText(7) to get the formatted raw text and then do some string searching to find the text you need. QPL has no such concept as "near to" or "to the right of". Andrew.

chrisreed Members Profile Find Members Posts Team Player Joined: 29 Apr 13 Location: Australia Status: Offline Points: 35	Post Options Post Reply Quote chrisreed Report Post Thanks(0) Quote Reply Posted: 29 Apr 13 at 12:23PM
	Yes the Header text will always be in the same position, but there are other Tags further down in the report which can be anywhere. I was hoping to search on certain key tag names that were also in BOLD format so I don't accidentally choose similar text in the main report. It looks like I can use SetTextExtractionOptions to get the details of the word formats (Font, Colour, Size etc..) but I wonder if that also includes whether it is bold or not? Anyway thanks for that info. I will install the trial version and give it a go.

chrisreed Members Profile Find Members Posts Team Player Joined: 29 Apr 13 Location: Australia Status: Offline Points: 35	Post Options Post Reply Quote chrisreed Report Post Thanks(0) Quote Reply Posted: 30 Apr 13 at 10:04AM
	Well I got it partially working but I have come across a few things I don't understand: If I use the function LoadFromFile to open a PDF then the HasFontResources function returns "1" (ie. PDF document has NOT been scanned in and so has readable text). If I open the same file using DAOpenFile or DAOpenFileReadOnly it returns a "0" why is this? Also is the general idea to use DA Functions only with other DA Functions.... ie. DAOpenFileReadOnly -> DASetTextExtractionOptions -> DAExtractPageText and LoadFromFile -> SetTextExtractionOptions -> ExtractFilePageText or can we mix and match between the different functions? Chris

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 30 Apr 13 at 10:44AM
	Hi Chris! Don't mix DA- and non-DA-functions ;-) DA-functions need less memory - so it's good to avoid memory leaks while working on large documents. Cheers, Ingo

chrisreed Members Profile Find Members Posts Team Player Joined: 29 Apr 13 Location: Australia Status: Offline Points: 35	Post Options Post Reply Quote chrisreed Report Post Thanks(0) Quote Reply Posted: 30 Apr 13 at 10:49AM
	Thanks for that Ingo - any idea about the HasFontResources problem? Chris

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3524	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 30 Apr 13 at 10:56AM
	Hi Chris! Which problem? HasFontResources is a non-DA-function - so don't use it with DAOpen... A DA-function begins with "DA" ;-) Cheers, Ingo

chrisreed Members Profile Find Members Posts Team Player Joined: 29 Apr 13 Location: Australia Status: Offline Points: 35	Post Options Post Reply Quote chrisreed Report Post Thanks(0) Quote Reply Posted: 30 Apr 13 at 11:02AM
	Ah! I see, but there doesn't seem to be an equivalent DAHasFontResources function, so how can I determine if a PDF has been scanned in (ie. an image) or has been created (ie. has text)? Chris