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PDF to images

Export each PDF page as PNG / JPG, choose a page range and resolution, download singly or as a zip

PDF 在你的浏览器里渲染,不上传服务器

把 PDF 拖到这里,或点击选择

一次处理一个文件;页数较多时渲染需要一点时间

PDF 转图片的常见用法

把 PDF 里的某一页当图片用。最常见的是:简历/证明只要其中一页,要贴进聊天窗口或上传到只收图片的系统;宣传册想把某页发朋友圈;合同要截取签字页留证。用页码区间只导出需要的那几页即可,不必整份转换。

清晰度怎么选。PDF 里的文字是矢量时,导出倍数越高越清晰:2×(约 144 DPI)适合屏幕查看与文档提交,3× 以上适合需要放大看细节或打印的场景,代价是文件更大、渲染更慢。若 PDF 本身是扫描件(整页就是一张图片),提高倍数只会把原图放大、并不会变清晰——此时建议用 2× 以内。

PNG 还是 JPG。含文字、表格、线条图的页面选 PNG,边缘锐利不带噪点;照片类页面选 JPG,体积能小很多(质量 80~90% 通常足够)。需要透明背景时只有 PNG 可以,但 PDF 页面本身通常是不透明白底,因此差别主要在于压缩方式。

关于隐私。整个渲染过程在你的浏览器里完成(用 pdf.js 把页面画到画布上再导出),PDF 不会被上传到任何服务器。合同、身份证、财务单据这类材料可以放心处理,可在浏览器开发者工具的 Network 面板核验没有文件上传请求。

FAQ

Can I copy the text after conversion?

No. An image is pixels - the text information no longer exists there. For copyable, searchable text, export from the original document directly or use our OCR tool.

Will it lag with many pages or big files?

Rendering goes page by page; with many pages or high scale factors you will wait, and the page may feel slow (it uses your machine's memory). Tip: export only the pages you need first; a few dozen pages at 2x per run is the safe default.

It says the PDF is encrypted - what now?

PDFs with an open password cannot be parsed. First open the file in a reader, enter the password, save a copy without the password, then upload that copy.

Can I export one long image?

This page is one-image-per-page. To get a single tall image, export the pages first and stitch them with the reverse mindset of our image-to-PDF tool, or export the pages and combine them in an image editor.

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