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User can also copy/paste or "Open In" e-signatures in other apps, such as Evernote, Pages, Dropbox, etc. 6. e-signatures are saved on the device automatically and can be reused any time when you launch the app again. 7. e-signatures can be exported via File Sharing function in iTunes and used by other desktop applications, such as Word, Pages, Mail, etc. 8.  If you copy/paste e-signatures to other apps, they are transparent PNG format, so they are suitable for documents with any background colors. 9.  This simple tool can help you to generate a customised e-signature on your iPhone, iPod touch and iPad, and share it in other apps or desktop applications. 1.  If you export e-signatures via "Open in" function, they will be exported as white background JPG format. 10.  Two function modes allow users to create a signature by handwriting or using different fonts. 2.  In typing mode, colors and fonts for the signature are customisable. 4.  In handwriting mode, colors and thickness of the strokes are customisable. 3.  User can insert an e-signature in a new email immediately within the app. 5.  Quick guide is available for the first time users.