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    給影片添加浮水印

    為影片加入浮水印 線上 直接在瀏覽器中以高品質處理. 立即試用此工具。 - 高速, 簡單, HD畫質 100% 在瀏覽器中本地處理,檔案不會上傳到伺服器。立即免費試用。

    將影片拖放到此處

    支援 MP4、WebM、AVI、MOV

    支援的格式

    MP4
    WebM
    AVI
    MOV
    PNG
    JPG

    使用方法

    1

    步驟 1

    上傳影片

    2

    步驟 2

    添加標誌或文字

    3

    步驟 3

    下載帶浮水印的影片

    常見錯誤

    • Uploading a video file too large for the browser (keep it under 2 GB).
    • Closing the tab before processing finishes: the conversion stops.
    • Using an exotic input format (prefer MP4, WebM, MOV, AVI).
    • Picking a bitrate so low that quality drops noticeably.

    專業技巧

    • Pick H.264 (MP4) for the widest compatibility.
    • For the web, use WebM (VP9/AV1): smaller file at the same quality.
    • Keep the original: processing is local but the download is final.
    • On mobile, plug in the charger for long videos.

    隱私保護

    您的影片在本地處理。不會將檔案上傳到我們的伺服器。

    新增浮水印 — 標誌、圖片或版權文字

    在您的影片上放置浮水印以保護您的內容免於重複使用:上傳標誌或圖片,調整不透明度、大小和位置(角落、中央),選擇版權文字或視覺標記,並立即在每個平台上強化您的品牌形象。

    也試試我們的工具: 免費線上轉換影片.

    技術詳情

    疊加透明 PNG 浮水印以保護您的影片:一個不顯眼的浮水印,確認您的品牌身分和版權。

    Why choose our online video watermark tool

    Our online video watermark tool stands out with 100% local processing via FFmpeg.wasm directly in your Chrome, Firefox, Safari or Edge browser — no server upload, no queue, no arbitrary size limit. You get a fast, free, no-signup, watermark-free tool compatible with all your MP4, MOV, AVI, MKV, WebM, FLV, WMV, M4V, 3GP files and more. Perfect for YouTubers, TikTokers, Instagram Reels creators, Premiere Pro editors, DaVinci Resolve, CapCut, Final Cut users, marketing pros, e-learning trainers and individuals who want to add watermark to video without installing heavy software like HandBrake, Adobe Media Encoder or VLC.

    Cross-device compatibility — PC, Mac, iPhone, Android

    Our video watermark tool works on Windows 10, Windows 11, macOS Ventura, Sonoma, Sequoia, Linux Ubuntu, Debian, Fedora, as well as iOS 16+ (iPhone, iPad), iPadOS, Android 10+ (Samsung Galaxy, Google Pixel, Xiaomi, OnePlus) and even Chrome OS on Chromebook. No native app, no APK, no .exe to download: just open the page in your favorite browser and start processing your videos. Compatible with videos from smartphones (4K HDR, slow-motion), GoPro cameras, DJI drones, OBS screen captures, After Effects exports, Loom screencasts and files downloaded from YouTube, Vimeo, TikTok, Twitch or Twitter/X.

    Privacy, GDPR compliance and video security

    Unlike competing services (Clideo, Kapwing, Veed.io, FlexClip, Online-Convert, Convertio, CloudConvert, FreeConvert, EZGif, Zamzar) that upload your files to remote servers in the US or Asia, our tool processes your entire video in your browser's RAM. Not a single byte is sent over the Internet, ensuring full GDPR, CCPA, LGPD and HIPAA compliance. Perfect for confidential business documents, medical, legal, educational videos, copyrighted content and any personal file you do not want to entrust to any third party.

    探索所有影片工具

    只需幾次點擊即可壓縮、轉換、剪輯、調整大小和編輯影片。

    查看所有工具

    相關工具

    指南與教學

    Apprenez à utiliser nos outils avec nos guides détaillés.

    常見問題

    您可以上傳PNG、JPG、JPEG或WebP格式的標誌。建議使用背景透明的PNG以獲得最乾淨的效果。

    可以,您可以將浮水印放在任意角落或置中位置,並調整其大小與不透明度,使其低調或明顯。

    不會,原始解析度與音軌保持不變——整個處理過程透過FFmpeg在您的瀏覽器本機完成,檔案不會上傳到任何伺服器。

    Both. Image watermark: upload PNG (with transparency preferred), positionable and adjustable opacity (typical 30-50% for discretion). Text watermark: name, brand, copyright with font and color of choice. Combination possible: logo + text for full signature.

    By default yes, over the whole duration. You can optionally configure a start and end timecode (e.g. watermark visible only during the first 5 seconds as an intro, or only during certain sensitive passages) for a more subtle look than a permanent signature.
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    為影片加入浮水印 線上 | Convertly Video - 高速