How to center an image in a PDF

This post was recently made on AcrobatUsers.com.

I am using Adobe Acrobat XI, and need to center a picture horizontally on a page. How can I do this?

At first I thought, this can’t be too hard, especially with the new editing tools in Acrobat XI. Then, after I tried it, I realized that although it isn’t hard, it’s not intuitive either because Acrobat doesn’t have the bells and whistles of other layout tools like InDesign.

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Commenting on a secured PDF file

This comment came up recently on AcrobatUsers.com.

I am a scientist who uses (or would like to) PDFs of journal papers. The problem is that some journals lock their PDFs so folks can not copy or change them (fair enough). The problem with locked PDFs is that you can not highlight important sections or add notes. For those of us without a photographic memory of everything we have read – these are really great tools.
My question then, is Adode considering developing a security level that would lock a PDF for copying/changing, but would allow for highlighting and note taking?

The good news is that it’s easy to allow recipients of your document to comment, but not copy or change a PDF document in Acrobat (not the free Reader). The bad news is that the original creator of the file needs to set this because you cannot change the security, unless you’re given the password of course.

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Rotate multiple pages at once

When I came across the following post on AcrobatUsers.com, I immediately knew what to do because we covered this during the Reorganizing Pages session for Learn Acrobat XI on Udemy.com.

When I combine JPEG images into a single PDF binder in Acrobat pro XI, some but not all of the pages rotate in the final PDF when they are in correct orientation in the preview combine files screen. It does not make sense and I then have to go through the final PDF and rotate individual pages slowing me way down. Very annoying, can this be prevented?

I’m not sure why the pages are rotated on import, unless the JPEG images are somehow defined that way but there is a simply fix even if the pages are non-contiguous.

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Copy and paste portions of PDF

Believe it or not, it was really difficult in earlier versions of Acrobat to simply copy/paste portions of a PDF back into the same PDF –¬† especially for scanned documents. Previously, you could only paste the area you were copying back into the same PDF by using the stamp tool – go figure. So when this question came up in the AcrobatUsers.com community, I had to let them know how easy it is to do in Acrobat XI.

I’m organizing some receipts. I scan a receipt for one file and scan another receipt for another pdf file. I want to cut or make a selection in one receipt and drag it into the first pdf file.
I tried making a selection for using the snapshot too and crop tool. I can take a snapshot and paste it into a word doc but not another pdf.

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