워터마크 추가
무료·가입 불필요·파일은 절대 기기를 떠나지 않습니다
How to watermark a PDF in 3 steps
Mark documents as DRAFT, CONFIDENTIAL, or your own name — visible enough to matter, subtle enough not to obscure.
Upload the PDF
Drop the document in the box above. It stays on your device throughout.
Design the watermark
Type your text, set opacity and rotation, pick a position or tile it across the page.
Download the marked copy
Click Add watermark. Every page carries your stamp, and the file downloads instantly.
Why watermark PDFs with AmiPDF
Professional stamping, CJK included — where most free tools break.
설계부터 프라이빗
처리는 전적으로 브라우저 안에서 이루어집니다. 업로드, 저장, 공유가 전혀 없습니다.
가입 불필요, 워터마크 없음
계정도, 이메일도, 제한도 없습니다. 출력물은 입력 그대로입니다.
Full CJK support
Chinese, Japanese, and Korean watermark text renders perfectly — a common failure point in free tools, solved by design here.
어떤 기기에서도 작동
Windows, Mac, Linux, Android, iOS에서 동일한 빠른 경험 — 설치 불필요.
When to watermark PDF pages
Review copies marked DRAFT before they circulate, contracts stamped CONFIDENTIAL, portfolios signed with the owner's name, training materials labeled INTERNAL. A watermark states status at a glance and discourages casual reuse.
Watermarking happens locally — private documents stay private.
Add PDF watermarks on any platform
AmiPDF는 브라우저에서 작동합니다 — 설치, 설정, 업데이트 모두 불필요.
Windows
Chrome, Edge, Firefox
macOS
Safari, Chrome
Linux
Any modern browser
iOS
Safari on iPhone, iPad
Android
Chrome, Samsung Internet
Frequently asked questions
Can I watermark with Chinese, Japanese, or Korean text?
Yes — full CJK support is a headline feature. Characters render correctly, including full-width punctuation.
How do I keep the watermark from hiding the content?
Lower the opacity slider until the text is present but unobtrusive. 20-30% works for most documents.
Can I place different text on different pages?
The watermark applies uniformly to the whole document. For per-page text, split the PDF first, watermark each part, then merge.
Does a watermark prevent copying?
A visible watermark deters, it doesn't prevent. For actual restrictions (copying, printing), use Protect PDF to set document permissions.
Can I add an image logo as watermark?
This tool stamps text watermarks. Image watermarking is on the roadmap.
Is the watermarked file uploaded anywhere?
No. The watermark is rendered and stamped locally in your browser.
관련 PDF 도구
계속 진행하세요 — PDF 작업에 필요한 모든 것, 전부 무료이고 전부 로컬 실행.