Adobe Acrobat Reader for iOS has been updated with various bug fixes. This impressive PDF app allows you not only to access PDFs stored in Adobe’s Document Cloud but PDFs stored on iCloud Drive, Dropbox, and OS X Server. Accessing these PDFs in various locations give you tremendous flexibility in storing and updating PDFs.
The commenting feature is very robust and allows you to mark up your PDFs with notes, highlighter, text underline and mark through as well as adding text, the ink tool and create a signature. After you highlight, you can tap on the highlighted portion and choose to clear it, choose various colors, modify the opacity and adjust the portion that is highlighted in case you did not select enough or selected too little.
The various tools are located to the left.
Also, with the iOS camera, you can created PDFs by “scanning” them into Adobe Acrobat.
If you are looking for a good PDF tool and reader, consider getting Adobe Acrobat Reader.