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Last updated on Sep 13, 2026

Sign on Mobile

Sign documents on your mobile device using pdfFiller's easy tools.

What is the Signature Tool?

The signature tool is a user-friendly feature that allows you to sign documents directly on your mobile device. With pdfFiller, you can easily self-sign documents without the need to send them for signature from others. This tool offers various signature methods, including drawing, typing, and uploading an image of your signature. The interface is designed to be intuitive, ensuring that you can complete the signing process quickly and efficiently.

How Does This Solve Document Workflow Issues?

Small and medium-sized businesses (SMBs) often face challenges in document workflows, such as delays in obtaining signatures and the need for physical document handling. The signature tool addresses these issues by providing a digital solution that enhances speed and efficiency. Digital signatures eliminate the need for printing and scanning, allowing you to sign documents on the go. This not only saves time but also reduces the risk of errors associated with manual processes.

What Are the Three Ways to Create a Signature?

There are three primary methods to create a signature using pdfFiller: drawing, typing, and uploading an image. Each method is legally equivalent, ensuring that your signature holds the same validity regardless of how it is created. Drawing allows for a personal touch, typing offers customization with various font options, and uploading an image is ideal for those who prefer their handwritten signature. Each method caters to different user scenarios, making it easy for you to choose the one that fits your needs best.

How to Draw Your Signature

  • Use a mouse, touchpad, or stylus to draw your signature directly on the screen.
  • Ensure you have a steady hand for the best results; practice if necessary.
  • After drawing, position your signature where needed on the document.
  • Adjust the size if necessary to fit the designated area.
  • Save your signature for future use if you plan to sign more documents.

How to Type Your Signature

  • Select the option to type your signature in the signature tool.
  • Choose your preferred font style from the available options.
  • Adjust the font color to match your document's theme.
  • Resize your typed signature to fit the required space on the document.
  • Reposition your signature as needed to ensure it is placed correctly.
  • Review your typed signature to ensure it meets your expectations.

How to Upload a Signature Image

  • Prepare your signature image in a supported format, such as PNG or JPEG.
  • Access the upload feature in the signature tool.
  • Select the image file from your device to upload it.
  • Adjust the uploaded signature's size to fit the document appropriately.
  • Place the signature in the desired location on the document.

How to Add Initials

To add initials using the signature tool, you can create them in several ways. You can draw your initials, type them using the keyboard, or upload an image of your initials. Placement options allow you to position your initials wherever necessary on the document. It's important to note that initials hold legal validity, just like full signatures, ensuring they can be used in official documents.

Customizing Your Signature Appearance

pdfFiller allows you to customize the appearance of your signature. You can choose different colors and thicknesses to make your signature stand out. Resizing and repositioning features enable you to adjust your signature to fit perfectly within the document. Personalization is key, as it helps ensure your signature reflects your identity and style.

Saving and Reusing Signatures

To save a signature for future use, simply follow the steps provided in the signature tool. You can set a default signature that will automatically appear in future documents, streamlining your signing process. Reusing signatures saves time and ensures consistency across your documents, making it a valuable feature for busy professionals.

Legal Validity of Signatures

pdfFiller's signatures comply with legal standards such as ESIGN and UETA, ensuring that your e-signatures are legally binding. The legal standing of e-signatures is well-established, and having an audit trail enhances the validity of your signed documents. This compliance is crucial for businesses that require secure and verifiable signatures.

Next Steps After Signing

After signing a document, you have several options for sharing it. You can easily send the signed document via email or integrate it with other pdfFiller features for further processing. Completing the workflow by sharing signed documents enhances productivity and ensures that all parties have access to the finalized versions.

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Sign

Add legally binding signatures.

Merge

Combine multiple PDFs.

Request signatures

Send a document for signing.

Convert

Transform PDFs into other formats.

Rearrange

Change the order of pages.

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How to sign a document online?

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Signing and editing documents has never been easier

  • Edit and sign in one place Quickly eSign documents after reviewing or editing — no need to juggle tools and move files back and forth. Get your PDFs done fast with all the tools you need at your fingertips.
  • Easy sharing & collaboration After signing a document, share it instantly with clients and stakeholders for review, editing, or comments. To request signatures from other parties, add fillable fields and send the document for signing.
  • Mobile-ready solution Easily edit, sign, and send your documents from anywhere, even on the go. pdfFiller is entirely cloud-based, so you can manage documents effectively from your computer, smartphone, or tablet.
  • Legally binding & secure Sign contracts and agreements following global eSignature laws, including ESIGN, UETA, eIDAS, and GDPR. With HIPAA, PCI DSS, SOC 2 Type II, and other compliance standards, pdfFiller works for any industry.

Who needs this?

Explore how professionals use pdfFiller to sign documents.

Healthcare

Healthcare professionals use pdfFiller to simplify document signing, from patient consent forms to medical record requests. They can easily request, approve, and share signed documents with patients, staff, or suppliers, saving time and improving communication.

  • Patient consent forms
  • Prescription forms
  • Lab test requisition forms
  • Referral and consultation forms
Healthcare
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pdfFiller is rated 4.6 out of 5 stars across 1,000+ G2 reviews.

Just started using it but it seems to be a great program that's very useful to me and my business
Anonymous Customer
Accurate, Easy to navigate, sign, and fill forms Minor delays in saving and processing forms once complete
Sonal
This tool has provided me the opportunity to be creative and research other formats per legal documents.
Pierre E
I just needed a quick conversion for one time. Thank You
Denise E
I always enjoy how I can find any… I always enjoy how I can find any document I need and the site is uber easy to navigate and that is the plus, plus!
Stephanie Lofton
very useful and easy to use very useful and easy to use, good app.
Laura

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FAQs

If you can't find what you're looking for, please contact us anytime!

You can securely sign documents on mobile devices using pdfFiller by downloading the mobile app or accessing the website through your mobile browser. After uploading your document, select the 'Sign' option, and you can create a signature using your finger or stylus. This process ensures that your signature is securely embedded in the document, maintaining its integrity. For added security, consider enabling two-factor authentication on your pdfFiller account to protect your documents and personal information.

Signing documents on mobile with pdfFiller offers convenience and flexibility, allowing you to manage important paperwork from anywhere. With the mobile app, you can quickly access, edit, and sign documents without needing a computer. This is particularly beneficial for remote professionals and legal teams who require immediate access to documents. Additionally, pdfFiller’s cloud-based platform ensures that your signed documents are stored securely and can be accessed across multiple devices, enhancing cross-platform compatibility.

Yes, pdfFiller allows you to sign multiple documents on mobile easily. After logging into your account, you can upload several documents at once and use the 'Bulk Sign' feature to apply your signature to each document in one go. This feature saves time and streamlines the signing process, especially for legal teams and SMEs that handle numerous contracts and agreements. Remember to review each document after signing to ensure all necessary fields are completed.

pdfFiller implements robust security measures for signing documents on mobile, including encryption protocols and secure cloud storage. When you sign a document, your signature is encrypted and securely stored, ensuring that unauthorized access is prevented. Additionally, pdfFiller complies with industry standards such as GDPR and HIPAA, making it a reliable choice for sensitive documents. For enhanced security, always use strong passwords and enable two-factor authentication on your account.

Yes, pdfFiller can be integrated with various applications for seamless mobile signing. You can connect pdfFiller with cloud storage services like Google Drive, Dropbox, and OneDrive, allowing you to access and sign documents directly from these platforms. This integration enhances document automation and simplifies your workflow, making it easier to manage and sign documents on the go. Check the pdfFiller integrations page for a complete list of compatible applications.

If you encounter issues signing documents on mobile with pdfFiller, first ensure that your app is updated to the latest version. If problems persist, try clearing the app cache or restarting your device. For persistent issues, consult the pdfFiller support center for troubleshooting tips or contact customer support for assistance. Additionally, ensure that your internet connection is stable, as connectivity issues can affect the signing process.

pdfFiller ensures compliance when signing documents on mobile by adhering to legal standards such as ESIGN and UETA, which govern electronic signatures. This compliance guarantees that your electronic signatures are legally binding and recognized in court. Furthermore, pdfFiller provides an audit trail for each signed document, documenting the signing process and ensuring transparency. This is crucial for legal teams and remote professionals who need to maintain compliance with regulatory requirements.

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