Apps for Signing PDF Documents on Android and iPhone

Signing PDF documents has become much easier thanks to mobile apps that let you add your signature without printing or scanning paperwork. Whether you're signing an employment contract, school form, business agreement or official document, you can complete the task directly from your Android phone or iPhone.

Many PDF signing apps also allow you to fill forms, add text, insert dates and share signed documents within minutes. While dozens of apps offer these features, only a few provide a smooth experience and are trusted by millions of users.

Here are some of the best apps for signing PDF documents on Android and iPhone:

1. Adobe Acrobat Reader

Adobe Acrobat Reader is one of the most recognised PDF applications available today. Besides viewing PDF files, it includes a Fill & Sign tool that allows users to create a digital signature and place it anywhere on a document.

The app also lets you complete PDF forms, add text where necessary and save the signed file without affecting the original document's quality.

Key Features

• Create and save digital signatures
• Fill out PDF forms
• Add text to PDF documents
• View and manage PDF files
• Share signed documents

2. DocuSign

DocuSign is widely used by businesses and organisations for electronic document signing. The app allows users to sign PDF documents securely from their smartphones without printing physical copies.

It also supports requesting signatures from other people, making it useful for contracts, agreements and official paperwork.

Key Features

• Secure electronic signatures
• Send documents for signatures
• Document tracking
• Cloud storage integration
• Easy document sharing

3. Xodo PDF Reader & Editor

Xodo combines a PDF reader with editing and signing tools in one application. Users can open PDF files, annotate documents, complete forms and add signatures directly from their phones.

The app is suitable for students, professionals and anyone who regularly works with PDF documents.

Key Features

• Sign PDF documents
• Fill PDF forms
• Highlight and annotate files
• Organise PDF documents
• Cloud storage support

4. Foxit PDF Editor

Foxit PDF Editor offers several document management tools, including the ability to sign PDF files electronically.

Apart from signatures, users can edit text, insert comments, highlight important sections and complete interactive PDF forms.

Its clean interface makes navigating large documents simple on both Android and iPhone.

Key Features

• Digital signature support
• PDF editing tools
• Form filling
• Document annotation
• File sharing

5. Smallpdf

Smallpdf is known for its easy-to-use PDF tools, including document signing. The app allows users to upload PDF files, create an electronic signature and place it anywhere on a document.

In addition to signing PDFs, Smallpdf includes tools for compressing, merging, converting and organising PDF files, making it a practical option for everyday use.

Key Features

• Electronic PDF signatures
• PDF compression
• Merge and split PDF files
• Convert PDFs to other formats
• Simple user interface

6. SignNow

SignNow is designed for people who regularly sign business documents. It allows users to create reusable signatures, complete forms and sign PDF files from their smartphones.

The app also supports document sharing, making it useful for businesses that need multiple signatures on the same document.

Key Features

• Create reusable signatures
• Fill and sign PDF forms
• Share signed documents
• Cloud storage support
• Secure document management

7. PDFelement

PDFelement is more than a PDF reader. It provides tools for editing, annotating and signing PDF documents from Android and iPhone devices.

Users can add signatures, insert text, highlight sections and complete forms without switching between different apps.

Key Features

• Electronic signatures
• PDF editing
• Form filling
• Document annotation
• File management

Choosing the Right App

The right app depends on how you use PDF documents.

If you only need to sign documents occasionally, Adobe Acrobat Reader and Xodo PDF Reader & Editor are excellent choices because they combine PDF viewing with reliable signing tools.

For business users who frequently exchange contracts and agreements, DocuSign and SignNow provide features designed specifically for electronic signatures and document workflows.

If you also edit PDF files regularly, Foxit PDF Editor, PDFelement and Smallpdf offer additional tools that go beyond signing, helping you manage documents from a single application.

Before installing any app, make sure it supports the features you need, such as document editing, form filling, cloud storage integration or offline access.

Share this

Share on FacebookPlus on Google+