Can I sign a document online?

Absolutely. pdfFiller allows you to sign any document using our Division technology, such as files, forms, applications, permit, contract, license, certificate, and agreement. You can use a signature font or upload a signature file and apply it anywhere on these documents.

What is a digital signature?

A digital signature is the process to authorize a digital message or document with a certificate-based digital ID. A valid digital signature means the identification of a signer has been verified. Digital signatures are most often used to apply a digital “seal” to an electronic document in order to make it tamper-evident.

How does pdfFiller verify electronic signature?

pdfFiller can offer an audit trail to show by whom and when the signature is created. With pdfFiller's new feature “Signature Verification”, you can get instant signature verification and sign your files, forms, applications, permit, contract, license, certificate, and agreement digitally and securely. pdfFiller will work as a trusted third party, or a certificate authority (CA). When you and your client draw, upload or capture a signature, pdfFiller will instantly provide a digital certificate to validate your electronic signature. With pdfFiller's cloud technology, you can also get a digital certificate when accessing and working on your files from an iPad, iPhone and other mobile device.

What's the difference between an electronic signature and a digital signature?

An electronic signature can be any piece of data like an image, a symbol, a sound recording and others. You can create an electronic signature skimpily by typing your name or uploading an image. A digital signature is an authorization to verify an electronic message or document with a certificate-based digital ID. A valid digital signature means the identification of a signer has been verified. Digital signatures are most often used to apply a digital “seal” to an electronic document in order to make it tamper-evident. A digital signature is a secure form of an electronic signature.

Can I edit my signatures online?

Yes. Use our “Signature Manager” to change the color or smoothing of your signatures. You can also add multiple signatures by uploading, capturing, typing or drawing.

Can I upload a signature from my computer?

Yes. Click on the “Signature” button in “Editor” page using pdfFiller to upload, draw, type or capture your digital signatures. Once you're done with creating your signatures, click “Save” and drag your signature anywhere within the document to use.

Do I need to upload a signature every time online?

No, you can save the signature and use it repeatedly any number of times on any number of documents.

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Sign Documents Online Using pdfFiller For Free

Drop document here to upload

Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT

Based on 12500+ reviews

Last updated on Jan 3, 2026

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pdfFiller scores top ratings on review platforms

When I first signed up, I only wanted a personal account. They system did not provide me with an option to choose, that I could see, between accounts. It automatically signed me up for professional and now I have to jump through a few hoops to cancel the pro and sign up for personal.

Chuck G

Support was excellent! I had trouble sending 28 page document and all I needed to do was change my setting and support showed me steps! Great job!!!

Sidney A

So far, I am impressed with the PDFfiller. I can do all the things I want to do in a rather straightforward manner. We will see what the future brings in terms of the capabilities I have not used yest.

Remi

What do you like best?
I like that I can upload either my own documents or find documents online.
What do you dislike?
The tab feature does not work when I upload my own documents
Recommendations to others considering the product:
Go in and play with it and learn all the functions, otherwise it seems too expensive for simply filling in the blanks.
What problems are you solving with the product? What benefits have you realized?
Everything is legible. When you have the ability to type in fields, of a pre-typed form, other people have an easier time reading.

Katherine Cleveland

Great customer service I signed up for a subscription when I really only needed to use it for one day. I canceled the subscription but it must not have gone through because I was later charged after a month. I canceled again and contacted customer service. They said the first cancellation must not have gone through but then refunded my money. That is why I will definitely use them again in the future.

unicorn

Well , I'm learning Well I'm still learning But the Draw option is AWESOME ,It lets you Sign in Real Time + It's Your Real Signature,Not a Generated one from putting text in a box and using thePC's script font to generate a signature .. Thanks Guys David Simmonsp.s.I'll let you know more as I learn to do more..Again Thanks..

David Simmons

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Watch pdfFiller eSignatures in action

Check out a quick video tutorial that shows how to create and place your signature or send a document for signing.

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