[X4U] pdf

[Joe Tinney]

This is common when PDFs were scanned in or saved as whole images and not created from or as text. Essentially, there is nothing to highlight as it is a single image to the PDF reader.

For instance, if you were to use a PDF printer (like Adobe Acrobat's) to print a text document you should be able to highlight that text. However, if you were to use a scanner and save a scanned image as PDF (without using OCR (Optical Character Recognition) software) you'd find that you would be unable to highlight the text - as there isn't actually any digital text there - only analog text.

I hope I've explained it clearly.

Regards,
Joe Tinney

-----Original Message-----
From: x4u-bounces at listserver.themacintoshguy.com [mailto:x4u-bounces at listserver.themacintoshguy.com] On Behalf Of scott-xlists at scotist.com
Sent: Wednesday, October 19, 2011 4:17 PM
To: A place to discuss Mac OS X for the casual user.
Subject: Re: [X4U] pdf


On Oct 19, 2011, at 11:17 AM, Winston MacKelvie wrote:

> Help. 
> 
> In Preview I can highlte pdf docs. But not if all. Patent office pdfs refuse to accept highliting. However I can use the Preview shapes on them.
> 
> How come?

Can you provide a link to a pdf that you can not highlight?


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