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為安全而生，為所有人打造。
客戶端渲染

產生安全的檔案預覽連結

透過拖放或 API 保護你的檔案和使用者的檔案——安全、簡單、對開發者友善。

PDF
Excel
Images
Video
Audio
Archive
Code
3D
上傳檔案API Docs

產生安全預覽連結（預設 1 小時有效）。可設定 TTL、浮水印、禁止下載、一次性存取、檢視追蹤等。保護你的應用程式和客戶附件檔案。

產生安全的檔案預覽連結

選擇任意檔案，設定存取政策，即可獲得可自訂有效期的預覽連結。

點擊或拖曳檔案至此

支援任意檔案類型

時長
1 hour

為什麼選擇 PreviewFile.dev？

為需要安全、可擴展檔案預覽能力的開發者打造

110+ 檔案格式

瀏覽器原生預覽 PDF、Office 文件、表格、圖片、影片、程式碼檔案、壓縮檔、圖表等——全部客戶端渲染。

See full list of supported file formats
  • PDF（PDF.js 檢視器）
  • Excel/CSV（x-spreadsheet）
  • 圖片、TIFF、影片、音訊

全面的安全能力

動態浮水印、防盜鏈、下載保護、一次性連結——保護敏感檔案。

  • IP / UA 綁定
  • CloudFront + 簽名 URL
  • 動態浮水印範本

面向開發者的 API 優先

透過 REST API 一行程式碼整合預覽能力，輕鬆嵌入任意 SaaS。

  • 上傳後返回預覽連結
  • 10+ 語言範例
  • 完整 TypeScript 支援

為規模而生

彈性架構 + 快取加速，滿足從創業團隊到企業的高並發預覽需求。

  • 客戶端渲染（零伺服器渲染負載）
  • 分層快取策略
  • 多區域部署 / 私有化託管

實際應用場景

了解 PreviewFile.dev 如何保護您的檔案

浮水印保護

新增自訂浮水印，防止內容被未經授權分享

Watermark Demo
CONFIDENTIAL
檢視示範

下載保護

允許檢視但禁止下載敏感文件

PDF
Download

此檔案類型無法在瀏覽器中直接預覽。

立即體驗

智慧嵌入

一行程式碼即可在您的應用程式中嵌入任意檔案格式

DOC
report.docx
<iframe src="/p/doc" />
支援 110+ 種檔案格式，包括 PDF、Office、圖片、影片等
檢視程式碼

隨處嵌入任意檔案

了解如何透過簡單的 iframe 將檔案預覽嵌入到您的應用程式中

即時預覽

Preview

簡單透明的定價

從個人專案到企業部署，PreviewFile.dev 支援各個階段。

Save save ~17% with yearly

Free

$0/month

非常適合嘗試 PreviewFile 的基本功能

  • 1,000 次預覽 / 月
  • 無限儲存空間
  • 1 day 連結有效期
  • OpenAPI 存取
  • 基礎支援
Get Started
Most Popular

Plus

$5/month

適合專業人士和成長中的團隊

  • 10,000 次預覽 / 月
  • 無限儲存空間
  • 7 days 連結有效期
  • OpenAPI 存取
  • 優先支援

Enterprise

Custom PricingCustom solutions for large-scale organizations
  • 包含 Plus 版所有功能
  • 無限預覽次數
  • 無限連結有效期
  • 專屬客戶經理
  • 自訂 SLA
  • 本地私有化部署選項
  • SSO/SAML 整合
  • 自訂合約
Contact Sales

Loved by Customers Worldwide

See what our users are saying about us

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

M
mrkelly
@kellypeilinchan

I’ve always hated making S3 objects public. It’s messy, hard to secure, and painful to manage. Now previewfile.dev, one line of code to handle secure file previews finally solves this. Plus it supports previewing hundreds of file types.

S
Seey
@seey_dev

PreviewFile lets me generate secure file previews with minimal code. Drag-and-drop or API—keeps things protected without building a viewer from scratch.

S
Shawn.Deng
@ShawnDeng0527

PreviewFile feels like a small but useful layer for secure file sharing — preview first, access later. Simple idea, makes sense for modern workflows.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.

D
Doris
@Hihi_Doris

One line of code to handle secure previews? That saves so much dev time. Building a secure viewer from scratch is a pain, so this API is a lifesaver. Congrats on the beta! 🚀

C
casperL
@casper_lzw

Stop building in-house file previews. previewfile.dev offers secure, private rendering with download protection built-in.

WC
William Chan
@william_3242

Love this idea. Secure client-side file preview is something a lot of teams underestimate until it hurts. The API integration + format coverage makes this feel very production-ready.