There are many pdf files which doesn't allow user from copying image and data. If you want to unlock pdf files for copy data from it, there is an online tool for that.
To unlock a PDF file, enter it’s location in the “PDF file to unlock” field, by either typing it in the field or clicking on the “browse” button, then navigating to it’s location.
The unlocked version of the PDF will be displayed in a new browser window, opened in the default PDF application for your system (usually Adobe Acrobat Reader).
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by Sharvinzlife
I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.
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