You can sign documents electronically from your computer or from your mobile devices. No need to print out documents and scan them again with the instruction bellow you will be able to add your signature to PDFs easily.
Note that you should never sign a PDF in a Safari/Firefox/Chrome window, but always download the PDF to your computer before signing it. If you don’t download the PDF before signing, it is likely that your signature will not be properly saved.
You have to options to add a signature: using a track pad or using the camera, if both options are available to you select your preferred method.
From a track pad: Sign using the track pad
From the camera: Show a white paper containing your signature to the camera to capture it.
Once your are satisfied with your signature, click “Done”.
Remember to save your now-signed PDF! In preview, the fastest way to save your PDF is simply to press CMD-s or go to the “File” menu and select “Save”.
Sign with your finger to create your new signature.
If you have an iPencil connected to your device, you can use it to create your signature.
Click “Done” when you are satisfied with your signature to insert it into your PDF.
Your signature is now created! Once inserted, you can move and re-size it as you wish.