The Snap and Read Universal iOS app cannot directly access a PDF.  For PDF's you have loaded into iBooks or another app on your iOS device. 

  1. Open up the PDF in iBooks (or another app).
  2. Take a screen shot of each page.  
  3. Open the Snap&Read iOS app.
  4.  Import one of the images you took from your photos. (Article to upload image to Snap&Read Universal iOS is linked below. )
  5. Use the Snap&Read OCR tool to read the image.  

Link to uploading an image to Snap&Read iOS:

 http://help.donjohnston.net/snapandread-universal/snapandread-for-ios/how-do-i-upload-an-image-from-my-photos-into-the-snap-and-read-universal-ios-app

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