Sign PDF Documents Online: Electronic Signature PDF Software

Upload the PDF to a browser based signing tool, click where the signature belongs to add your signers, type or draw your signature, and download the finished file. If somebody else has to sign it, enter their email instead and the tool sends them a link. The whole process takes about two minutes and needs no software installed on your computer.

The step people skip is sending it for signature instead of marking up the PDF themselves. SignSend stacks a signature block per signer, so a second signer never lands on top of the first. It also means the signature is anchored to a location in the file rather than floated on top of it.

You never need to print. Upload the PDF, and sign in the browser by drawing your signature with a mouse or a finger, or by typing your full legal name. All three produce a valid electronic signature under the ESIGN Act, which defines one as an electronic sound, symbol, or process attached to a record and executed with intent to sign.

Print, sign, scan, and email is still surprisingly common in United States offices, and it is worse than the electronic route on every measure that matters. It degrades the document quality, it takes about fifteen minutes per round trip, and it produces no evidence of who actually held the pen. A scanned signature page is a picture. An electronic signature carries a record.

Yes. In the United States, a PDF signed electronically is legally binding under the federal Electronic Signatures in Global and National Commerce Act, in force since 2000, and under the Uniform Electronic Transactions Act, which has been adopted by nearly every state. Both say a signature, contract, or record cannot be denied legal effect solely because it is in electronic form.

ESIGN carves out categories where electronic signatures are not sufficient on their own. Wills, codicils, and testamentary trusts are excluded. So are most family law matters such as adoption and divorce, certain notices affecting a person's home including foreclosure and eviction, court documents, and the cancellation of utility or health insurance benefits. Most Uniform Commercial Code articles are also excluded, with the notable exception of Article 2 on the sale of goods. For ordinary business paper, service agreements, NDAs, leases, purchase orders, statements of work, offer letters, none of that applies.

What does matter in a dispute is evidence. If the other side claims they never signed, you have to show they did. The audit trail, the email address the link went to, and the timestamp are what carry that argument. This is the practical reason a real signing tool beats drawing on the page in a PDF viewer, not a legal technicality.

A PDF signed with a simple drawn or typed mark can be edited by anyone with a PDF editor, because nothing binds the mark to the content. A PDF completed through an e-signature platform is different: the finished document is sealed and any modification after signing is detectable, and the audit trail records the document's state at the moment each party signed.

This is the distinction between an electronic signature and a digital signature in the cryptographic sense. An electronic signature is the legal act of signing. A digital signature is a specific technology, using a certificate and a hash of the document, that makes tampering evident. Most business e-signature tools apply the second in the background to protect the first. If the point of the exercise is a contract that survives being questioned, you want the sealed version, not a drawing.

If the sender used an e-signature platform, the email contains a link. Click it, review the document, type or draw your name, tick the consent box, and confirm. You do not need an account, a download, or the sender's software. On a phone it works the same way in the mobile browser.

If the sender just attached a plain PDF, you have a choice. You can mark it up in a PDF viewer and email it back, which works but leaves no record of who signed. Or you can upload it here, sign it, and send back a document that carries an audit trail. On anything with money attached, the second is worth the extra thirty seconds.

There are two versions of this question and they have different answers. If you have several different documents that all need your signature, upload them and sign each one; there is no shortcut that is safe, because you should be reading each document. If you need to send the same document to many people, that is bulk sending, and it is a single action: upload once, attach a recipient list, and each person gets their own copy to sign.

Bulk sending is worth checking before you buy any tool, because vendors price it very differently. DocuSign puts bulk send on its Business Pro tier and each recipient in the batch consumes one envelope from that user's annual allowance, so a hundred person send burns a full year of one seat's quota. If you routinely send one document to a list, price that feature specifically rather than assuming it comes with the plan.

SignSend does not add initials: it collects one signature per signer and puts the signature block on the page itself, so per-page initials are not something it does today. Most agreements that call for page initials do so to stop pages being swapped after execution, which means the initials have to appear on every page, not just the ones with terms on them.

Whether you need page initials at all is a judgment call. They are common on real estate contracts, equipment leases, and some settlement agreements, and they are unnecessary on most short service agreements. If the document arrived with initial lines already printed at the page footers, SignSend cannot fill them in for you, so that document needs a tool that lets you position marks on the page, or a printed and rescanned copy.

Yes, and you do not need any Adobe product. Browser based e-signature tools, the built in Preview app on macOS, and the PDF viewers in Chrome and Firefox all let you put a signature onto a PDF without Acrobat. The difference is what you end up holding afterward.

The built in options give you a mark on a page. That is enough for an internal form. It is not enough for a contract, because there is no record of who applied the mark, no timestamp, and no way to show the file has not changed since. A dedicated signing tool is the answer whenever the document is going to somebody outside your company. There is more detail in our guide to signing a PDF without Adobe, including where each method falls down.

Cost is the other reason people ask. Adobe Acrobat Standard for teams runs about $14.99 per user per month and Pro for teams about $23.99, with roughly 150 signature transactions per user per year included. Figures corroborated across independent sources on July 24, 2026; check adobe.com for current rates before you commit.

The pattern across United States businesses is consistent: the documents that move money or define an obligation are the ones that get e-signed first. Here is what that looks like in practice, with the pages that cover each in detail.

The one row worth a second look is the bill of sale. Notarization is a separate requirement from signature, and a handful of states expect a notary on vehicle transfers or on the title assignment. Our guide on whether a bill of sale needs to be notarized goes through it state by state, and points at the state agencies rather than asking you to take our word for it.

The sticker price is rarely the whole bill in this category, because most vendors charge per sender and then meter how many documents each sender may send. Both numbers have to be in the calculation. Prices below are per user per month on annual billing, with the date each was last confirmed.

Two things fall out of that table. First, the entry plans are close enough that price is not what should decide between them; the monthly document limit is. Second, the per user model means the bill scales with headcount whether or not the extra people send anything. A full breakdown of every vendor sits on our e-signature pricing comparison.

Four things, and they are the same four every time. Intent to sign, which the signing flow establishes by requiring a deliberate action. Consent to do business electronically, which for consumer transactions ESIGN section 7001(c) makes an explicit disclosure requirement. Attribution, meaning evidence connecting the signature to a specific person, which is what the email address and audit trail provide. And retention, meaning the signed record can be accurately reproduced later.

Anything that produces all four is defensible. A drawn mark in a PDF viewer produces the first and, on a good day, the fourth. That gap is not usually a problem until it is, and when it becomes a problem it is at the point where somebody is denying they agreed to something.