---
title: "PDF下载助手 - PDF Downloader – Chrome extension stats, history and permissions"
description: "169 users, no ratings yet. Version 1.2.1, updated 2026-07-02. Requests 4 permissions."
url: "https://extensiontracker.com/extension/niioplcglhbgcofljieodjplhlifclcj"
---

# PDF下载助手 - PDF Downloader

Live in the Chrome Web Store.

- Users: 169
- Rating: no ratings yet
- Last checked: 2026-09-27 06:16 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #53,608 of 264,703 live extensions
- Rank in Tools: #16,038 of 103,498

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> 自动捕获网页中的PDF文档，支持搜索、阅读和一键下载课程课件、论文、报告和内部资料。

- Extension ID: `niioplcglhbgcofljieodjplhlifclcj`
- Developer: [ybing8356](https://extensiontracker.com/developer/u8556d6e48c55d80d77487240f8af194f)
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2026-07-02
- Last updated: 2026-07-02
- Version: `1.2.1`
- Size: 128 KiB
- Minimum Chrome: 88
- Languages (1): English
- Privacy policy: `https://github.com/dingdaoyi/pdf-downloader/blob/main/docs/privacy-policy.md`
- Chrome Web Store: <https://chromewebstore.google.com/detail/pdf%E4%B8%8B%E8%BD%BD%E5%8A%A9%E6%89%8B-pdf-downloader/niioplcglhbgcofljieodjplhlifclcj>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fniioplcglhbgcofljieodjplhlifclcj>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 169 | – | – |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `<all_urls>`: Every website

### Sites where it runs scripts

- `<all_urls>`: Every website

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `storage`: Save settings and data in your browser
- `webRequest`: Watch network requests on the sites it can reach

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-27 06:16 UTC; next check around 2026-10-19.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “PDF下载助手 - PDF Downloader” (niioplcglhbgcofljieodjplhlifclcj). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/niioplcglhbgcofljieodjplhlifclcj. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_niioplcglhbgcofljieodjplhlifclcj,
  title   = {PDF下载助手 - PDF Downloader (niioplcglhbgcofljieodjplhlifclcj)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/niioplcglhbgcofljieodjplhlifclcj},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/niioplcglhbgcofljieodjplhlifclcj>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.