Nén PDF
Mã hóa lại trang PDF thành JPEG để giảm dung lượng (bản scan).
Interactive controls load with JavaScript. Processing stays in your browser.
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How to use
- 选择本地 PDF（建议 < 40MB、≤ 80 页）。
- 选择轻度 / 中等 / 强力预设后开始压缩。
- 引擎：懒加载 pdf.js（渲染）+ pdf-lib（写出）；页面栅格化为 JPEG。
- 文字会变为图片、不可选中；适合扫描件。文件不上传。
FAQ
Does Nén PDF upload my data?
No. Nén PDF runs locally in your browser and does not upload content to www.518882.com or third-party APIs.
Do I need an account?
No. Open and use — no signup, login, or paywall. Open Nén PDF and use it — no signup, login, or paywall.
How is this different from upload-based tools?
Tools run locally in your browser; content is not sent to our servers for processing — suited to private text and drafts.
Are there limits?
Limited by device memory and the browser; very large inputs may slow the page. There is no account quota.