These are the software designed in order to secure the document before sharing it online or to sign an agreement over electronic media through digital signatures. PDF is widely used for contracts in many cases people have to sign invoices and send it through the mails. This allows the users to secure data, sign any agreement virtually, share the agreement with retaining its originality and also save lots of time. For the users of iOS 10/iPhone 7, there are plenty of apps which can finish this task. This article is going to show you the best one among them, and how to scan to PDF on iPhone.

Part 1. Best App to Sign PDF on iPhone
Part 2. How to Sign a PDF on iPhone

Part 1Best PDF Signer on iPhone

The best app appears to be Wondershare PDFelement for iOS that could be downloaded from the app store for only $4.99 without any subscription. It also provides range of various features that are not available on other apps,such as free tutorials of how to sign the documents. You can also convert the files into PDF and edit them before signing the document.

The key features of wonder share are following:

Signature: the digital signatures, encryption or security passwords are one of the key features.
Convert: the app can convert documents from word, PPT, RTF and images into PDF format by following few easy steps.
Text editing: the text on the PDF documents can also be changed or edited. Changes in the color, size and fonts of shape can be done it can also be rotated.
Scan: this app also allows users to scan any image into PDF file and convert into the specific format.

Annotate: this feature allows the users to highlight, strike through or underline the text from the documents.
Organize: Wondershare will also allow users to get their file in well synchronized manner.

Check the Video Tutorial

Part 2How to Sign a PDF on iPhone

With Wondershare PDFelement for iOS, the PDF document could be signed in just a few simple steps. By going through following steps you can electronically sign the document.

Step 1. Import PDF File

Launch PDFelement for iOS on your iPhone. Choose the PDF file which you want to sign and click on it.

Step 2. Draw the Signature

Choose the "Draw" icon on the bottom to activate the signature feature. Click the "Pen" icon on the top right corner of the pop-up box to draw your signature. Then you can start to draw your signature with your finger. You can also take a picture or upload a photo if you don't want to draw it by yourself. Click "Done" when you're ready.

Step 3. Save PDF File

Place the signature on the right place. You can adjust the size if you need to. Then you should click the "Save" button when you're done. Now you'll have a PDF file which contains your signature on it.