I have the following code, which looks at each cell in column A of my spreadsheet, searches for the text it finds there in the specified PDF and then extracts the page where
Loops are definitely excellent for some things, but can tie down processing with these higher queries. Recently, a colleague and I were doing a similar task (not pdf-related though), and we had much success with using a range.find method instead of a loop executing instr on each cell.
Some points of interest: -To mimic the “loop cells” functionality when using the .find method, we ended our range statement with .cells, as seen below:
activesheet.usedrange.cells.find( )
Where the desired string goes within the ( ).
-The return value: “A Range object that represents the first cell where that information is found.”
Once the .find method returns a range, a subsequent subroutine can extract the page number and document name.
-If you need to find the nth instance of an occurrence, “You can use the FindNext andFindPrevious methods to repeat the search.” (Microsoft)
Microsoft overview of range.find: https://msdn.microsoft.com/en-us/vba/excel-vba/articles/range-find-method-excel
So with this approach, the user can use a loop based on a count of cells in your list to execute the .find method for each string.
Downside is (I assume) that this must be done on text within the excel application; also, I’ve not tested it to determine if the string has to inhabit the cell by itself (I don’t think this is a concern).
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Another suggestion that might be beneficial is to first bulk-rip all text from the .pdf with as little looping as possible (direct actions at the document object level). Then your find/return approach can be applied to the bulk text.
I did a similar activity when creating study notes from a professor’s PowerPoints; I grabbed all the text into a .txt file, then returned every sentence containing the instance of a list of strings.
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A few caveats: I admit that I have not executed parsing at the sheer size of your project, so my suggestions might not be advantageous in practice.
Also, I have not done much work parsing .pdf documents, as I try to opt for anything that is .txt/excel app first, and engage it instead.
Good luck in your endeavors; I hope I was able to at least provide food for thought!