I just spent a couple of hours debugging a workflow, because the finally
generated PDF seemed to have been OCR'd but with every character being a
space.
Turns out that the problem was not in the workflow, but me using
Preview.app, as explained in this thread. Acrobat Reader does extract the
Unfortunately, I think there is nothing we can do. I've done everything I
can to
maximize compatibility with various PDF rendering engines, but Preview uses
particularly terrible text extraction heuristics. To be fair, the root
problem is
the design and complexity of the PDF specification
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