PDF Tools·4 min read

Electronic vs Digital Signatures When You Sign a PDF

The lease is due back by five and the leasing office doesn't care how the signature gets there. This is where the difference between electronic and digital signatures stops being pedantic and becomes practical. Sign PDF Online places an image of your signature on the page, drawn, typed or uploaded, which makes it an electronic signature. It is not a certificate-based digital signature. Knowing which one a situation demands saves you from overkill on a lease and from embarrassment on a regulated filing.

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Signing paperwork without a printer in the loop

The 4 pm lease problem.

The scenario repeats everywhere: a lease renewal, an NDA before a sales call, a school permission form. The other party needs your mark on page two by end of day, and the print-sign-scan routine assumes hardware you may not have touched in years.

Signing directly on the PDF cuts that routine to a minute. Upload, create your signature, pick the page, drag it onto the line, download. For the broad class of documents where the other side simply needs evidence you agreed, that's the entire job.

Electronic vs digital signatures, defined plainly

An electronic signature is any mark made with the intent to sign: a drawn squiggle, a typed name, even a ticked box next to the right sentence. What this tool adds is exactly that, an image of your signature placed where you put it.

A digital signature is a cryptographic construction. Software fingerprints the document, signs that fingerprint with a private key tied to a certificate issued to you, and any later edit breaks the check. Readers show a verification badge for these. The two share a word but not a mechanism, and no signature image, however neat, becomes a digital signature.

Are electronic signatures binding on leases and NDAs?

For many everyday agreements, yes. In the US, the ESIGN Act and state laws based on UETA give electronic signatures legal effect for most contracts, and in the EU, eIDAS recognises them too. What matters is that both parties intended to sign and agreed to do it electronically. This is general information, not legal advice.

The exceptions are real. Wills, some family-law documents and certain property transfers still need ink, witnesses or a certified signature in many places. Where a regulator or court asks for a digital signature certificate or a qualified signature, an image won't meet the requirement, and this tool doesn't issue certificates.

A worked signing pass on a two-page NDA

Input: nda-acme.pdf, two pages, signature line at the bottom of page 2. Upload it, then create your signature: Draw with a mouse or finger, Type your name and pick a style, or Upload a photo of your signature on white paper, whose background the tool removes. Choose black, blue, red, green or any other ink colour.

Use the page arrows to go to page 2 and press Signature. It appears as a box on the page preview; drag it onto the line and pull the corner handle to resize it. Arrow keys nudge it and the plus and minus keys resize it. Press Date to add today's date beside it, and Name for your printed name. Then set up initials and place them with Place on set to All pages but last, so page 1 gets initialled too. Press Sign & download, and nda-acme-signed.pdf has every item exactly where it sat in the preview.

Signature mistakes that get documents sent back

Most rejected signed PDFs fail on logistics rather than law. Watch for these.

Signing the wrong page. Many leases sign on the last page, so check the page number before you place the signature.
Drawing tiny. Trackpad strokes come out jagged at small sizes; draw large, since the signature is scaled down when placed.
Treating the image as identity proof. It shows agreement, not who made it, so keep the email thread that carried the document.
Signing a version still under negotiation, then losing track of which signed copy matched which draft.
Expecting a certificate badge in the recipient's reader. An image signature never produces one, and that's expected.

Drawn, typed or uploaded, and signing several pages

Legally, the method matters less than people assume; intent is the test. A typed name carries the same standing as a drawing. Practically, Draw suits phones and tablets, where a finger gives a natural line. Type uses handwriting-style fonts installed on your device, so the look varies a little between computers. Upload gives the most familiar result if you have a clean photo of your real signature.

Several pages take one pass. Each item has a Place on setting: only this page, all pages, all pages but last, the last page, or custom pages such as 1, 3-5. Copies share one position, so moving one moves them all, and you can still add separate items on other pages. For high-value transactions or regulated filings, use a certificate-based signing service instead.

After signing: the tools worth chaining

Before sending anything, open the signed file in Online PDF Viewer and check the signature sits where you expect at full size; a preview can hide an overlap with printed text. If the agreement came as separate exhibit files, run Merge PDF first and sign the combined document, so the signature and its exhibits can't drift apart.

For NDAs and anything salary-related, Password Protect PDF encrypts the signed copy in your browser before it goes by email. Signing shows you agreed; encryption controls who can read what you agreed to. Sign first, then protect.