사용 방법

PDF에 전자 서명하는 방법: 단계별 가이드

인쇄하고 서명하고 스캔하는 반복 작업은 이제 그만. 단 몇 분이면 어떤 PDF에든 법적으로 유효한 전자 서명을 추가하는 방법을 알려드립니다.

The lumr editorial team4분
A signature being placed on the signature line of a PDF contract in a browser window

핵심 요약

  • A typed, drawn, or uploaded signature applied straight to the PDF is accepted for most everyday agreements.
  • The whole flow is four steps: open the file, create the signature, place and date it, export a new PDF.
  • Export as a new file so the unsigned original stays intact.
  • High-stakes contracts can still require a qualified or notarized signature, so check what the document demands.
이 글에서

Why electronic signatures replaced print-and-scan

The old way of signing a document — print it, sign it with a pen, scan it back, and hope the file size is acceptable — wastes paper, time, and at least one trip to a printer that is inevitably out of toner. Electronic signatures do the same job in a fraction of the time and produce a cleaner result.

For the vast majority of everyday agreements — offer letters, rental forms, consent slips, vendor contracts — a typed or drawn electronic signature applied directly to the PDF is widely accepted and perfectly sufficient.

Step 1 — Open the PDF in an editor

Start by opening the document in a PDF editor that supports adding a signature. You should be able to upload the file straight from your computer or phone without installing anything. Once it loads, navigate to the page and the spot where the signature belongs.

Step 2 — Create your signature

Most editors give you three ways to produce a signature. Choose whichever matches how official the document needs to feel, then place it where it belongs.

  • Type it: enter your name and pick a handwriting-style font — fast and legible.
  • Draw it: sign with your mouse, trackpad, or finger for something closer to your real signature.
  • Upload it: add an image of your pen signature if you already have one saved.

Step 3 — Place, size, and add the date

Drag the signature onto the signature line and resize it so it sits naturally without overlapping the surrounding text. If the form has a date field, add the date next to it. Take a moment to check that you have signed every place the document requires — multi-page agreements often need initials on each page.

Step 4 — Save and share

Export the signed document as a new PDF so the original stays untouched, then send it on. The result is a single, clean file that looks far more professional than a crooked scan — and you never touched a printer.

If you sign documents often, keep your saved signature handy so the next one takes seconds. With lumr you can sign a PDF in the browser, place your signature exactly where you want it, and download the finished file straight away.

자주 묻는 질문

Is an electronic signature legally binding?

For the vast majority of everyday agreements, yes. Offer letters, rental forms, consent slips and vendor contracts are routinely signed with a typed or drawn electronic signature. Property transfers and certain financial or legal instruments are the exception and can require a qualified or notarized signature with stronger identity verification.

How do I sign a PDF without printing it?

Open the PDF in an editor that supports signatures, create your signature by typing, drawing, or uploading an image of it, drag it onto the signature line and resize it, add the date if the form has a date field, then export the signed document as a new PDF.

Can I sign a PDF on my phone?

Yes. A browser-based editor needs nothing installed, and drawing a signature with your finger on a touchscreen usually produces a closer match to your real signature than a mouse or trackpad does.

Should I sign every page of a contract?

Sign wherever the document asks you to. Multi-page agreements often ask for initials on each page in addition to the signature at the end, so check every page before exporting.

관련 글

저자 소개

The lumr editorial team 사진
The lumr editorial team

Document workflow editors

The editorial team behind lumr, writing practical guides for people who work with documents every day.