Add signature to PDF on Smartphone phone

How to add signature to PDF on Smartphone with DocHub

In today's fast-paced world, managing documents on the go is essential. Our platform, DocHub, offers a seamless way to edit, sign, and share documents directly from your smartphone's web browser. Whether you’re using a Samsung Galaxy S25 Ultra, Apple iPhone 16 Plus, Xiaomi Redmi K70 Ultra, OPPO A78 4G, or Vivo X100 Pro, you can easily add your signature to a PDF while enjoying the convenience of our online editor for free.

Follow the steps to add your signature

Open your mobile web browser and navigate to the DocHub website. Log in with your credentials or create a free account if you haven't already.
Once logged in, upload the PDF document you wish to sign by selecting the import option available in the editor.
Locate the signature feature within the editing tools. You can create a new signature by drawing it with your finger or stylus, or by uploading an image of your signature.
Once your signature is ready, place it accurately on the document by dragging it to the desired location.
Review your document to ensure everything is in order. Once satisfied, proceed to download the signed PDF, print it, or share it directly from the platform.

Start using DocHub today to effortlessly manage your document signing needs!

PDF editing simplified with DocHub

Seamless PDF editing

Editing a PDF is as simple as working in a Word document. You can add text, drawings, highlights, and redact or annotate your document without affecting its quality. No rasterized text or removed fields. Use an online PDF editor to get your perfect document in minutes.

Smooth teamwork

Collaborate on documents with your team using a desktop or mobile device. Let others view, edit, comment on, and sign your documents online. You can also make your form public and share its URL anywhere.

Automatic saving

Every change you make in a document is automatically saved to the cloud and synchronized across all devices in real-time. No need to send new versions of a document or worry about losing information.

Google integrations

DocHub integrates with Google Workspace so you can import, edit, and sign your documents directly from your Gmail, Google Drive, and Dropbox. When finished, export documents to Google Drive or import your Google Address Book and share the document with your contacts.

Powerful PDF tools on your mobile device

Keep your work flowing even when you're away from your computer. DocHub works on mobile just as easily as it does on desktop. Edit, annotate, and sign documents from the convenience of your smartphone or tablet. No need to install the app.

Secure document sharing and storage

Instantly share, email, and fax documents in a secure and compliant way. Set a password, place your documents in encrypted folders, and enable recipient authentication to control who accesses your documents. When completed, keep your documents secure in the cloud.

Drive efficiency with the DocHub add-on for Google Workspace

Access documents and edit, sign, and share them straight from your favorite Google Apps.

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Got questions?

Here are some common questions from our customers that may provide you with the answer you're looking for. If you can't find an answer to your question, please don't hesitate to reach out to us.

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How do I add a signature to a PDF on my phone?

Download a PDF editor app. Once you find the PDF editing app of your choice, simply log into the service, open the file you want to sign using the app, select Fill Sign, draw your signature or upload a saved signature, and tap Done. The document will now have your official signature and is ready to share.

How do I add a signature in docHub Mobile App?

Create a signature Open a file that is not shared or password-protected. Tap Tap. Tap Create Signature or Create Initials and do one of the following: Tap Draw to hand draw a signature. Tap Image to choose an image on your device. Tap Camera to use your camera to capture an image of your signature. Tap Done.

How to attach a digital signature?

To add a digital signature, open your Microsoft Word document and click where youd like to add your signature line. From the Word ribbon, select the Insert tab and then click Signature Line in the Text group. A Signature Setup pop-up box appears. Enter your information in the text fields and click OK.

How to add a digital signature to a PDF without docHub Pro?

How to Add a Signature to a PDF without docHub on a PC Launch WPS PDF Editor. Click open to open desired file. Upload specific file. Select Comment the Add signature. On the POP-UP Box, add name or signature. Draw a signature or write it down. Click below as shown by the arrow. Select PDF Signature.

How to enable digital signature in PDF?

To add a digital signature to a PDF in Acrobat, users can take the following steps: Open the PDF document in docHub. Click on the Tools tab in the top menu bar and select Fill Sign. Click Sign Yourself Add Signature. Drag and resize the signature so it appropriately fits in the document.

How do I add a Digital Signature to a PDF?

See how to sign a PDF Open the PDF document and select Sign from the top tools bar. Create your signature and initials if not already done. From the Sign panel, select your signature, move over to the field where you want to add it, and then click to place the signature. The form fields are detected automatically.

How to do an e-signature on a phone?

Android: Using docHub Fill Sign Download the docHub Fill Sign app from Google Play. Open the app and select a document to sign from recent forms or click the + to add a form to sign. Choose an option. Find the form to sign, or take a photo of the form.

How do I add a digital signature slot to a PDF?

How to add a signature block to a PDF Open the PDF with docHub. Select Tools at the top left of the screen. In the Forms Signature sections, choose Prepare Form. Select Start. Choose the Add a Signature block icon from the tools ribbon. Move your cursor to where you want to place the block and click.

See why our customers choose DocHub

Great solution for PDF docs with very little pre-knowledge required.

"Simplicity, familiarity with the menu and user-friendly. It's easy to navigate, make changes and edit whatever you may need. Because it's used alongside Google, the document is always saved, so you don't have to worry about it."

Pam Driscoll F
Teacher

A Valuable Document Signer for Small Businesses.

"I love that DocHub is incredibly affordable and customizable. It truly does everything I need it to do, without a large price tag like some of its more well known competitors. I am able to send secure documents directly to me clients emails and via in real time when they are viewing and making alterations to a document."

Jiovany A
Small-Business

I can create refillable copies for the templates that I select and then I can publish those.

"I like to work and organize my work in the appropriate way to meet and even exceed the demands that are made daily in the office, so I enjoy working with PDF files, I think they are more professional and versatile, they allow..."

Victoria G
Small-Business

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At DocHub, your data security is our priority. We follow HIPAA, SOC2, GDPR, and other standards, so you can work on your documents with confidence.

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Add signature to PDF on Smartphone mobile device