Questioning, I’m not certain that I understand what you want to do.
DT Pro can import PDF files in several ways, depending on your preferences settings and choice of import methods.
If you wish to import only the text from PDFs into your DT/DT Pro database, leave the original PDF in the Finder but linked to DT Pro so that you can open it under Preview from DT/DT Pro, here’s how:
DEVONthink Pro > Preferences > PDF & PS settings as follows:
Index & convert: check Use PDFKit (Tiger) OR check Use built-in pdftotext (OS X 10.3.9, and also check Convert to plain text); and
Index & convert: check Convert to Rich Text
COMMENT: Tiger is recommended. If you use under Tiger the settings above, DT Pro will capture the rich text of a PDF file and link externally to the PDF EVEN IF you have set preferences to import a copy of the file to the databases’s Files folder, and DT Pro will NOT import a copy of the file to your database’s Files folder. If you are using Tiger, you do not need any other application or utility to capture rich text from a PDF.
NOTE: IF you encounter a PDF file that is image-only (just a picture of text), then – obviously – PDFKit can’t read the text. The workaround would be to run the PDF through an OCR application in order to convert the image file to a PDF that contains text.
NOTE: If the PDF file is encrypted to prevent copying, PDFKit cannot read the text. A workaround would be to use a third party utility to make a copy of the file with security removed.
TIP: Even if your preferences are normally set to import PDF files via File > Import > Files & Folders into your database’s Files folder and display the document in DT/DT Pro as PDF+text (which is the setting I normally use), you can capture the text content of any of your PDFs by exporting them to a target folder using File > Export > Files & Folders. Then TEMPORARILY change your Preferences > PDF & PS settings to capture rich text, and you will have a second import of the PDF file in your DT/DT Pro database, which contains only the rich text content. Note also that you can export the text of a PDF from Acrobat (full version), or capture selections as rich text from within Preview.
NOW ABOUT USING PDF2RTFService:
This is a very convenient way of capturing the text content of PDF files from within any Cocoa application, such as Pages or TextEdit. If that’s what you want to do, it really works.
Follow the instructions to install it.
Then logout/login (or restart) to initialize the new Service. Works under Tiger.