I like to use If this then that to add recurring items to evernote. You can use the date/time trigger to trigger on specific intervals and add a note to evernote with specific tags/titles. Works well enough for me.
I've spent a fair bit of time researching PDF OCR in evernote and I came to the conclusion that it only OCRs handwriting in pictures, and text in PDFs. http://discussion.evernote.com/topic/23940-my-scanned-pdfs-dont-get-ocrd-by-en/?p=126567