PDF Converter vs 盖章
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Converter
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PDF Converter is a simple and practical PDF tool for mobile file processing. It helps you convert, merge, split, preview, save, and share PDF files directly from your phone. Whether you are working with office documents, study materials, contracts, receipts, or image files, PDF Converter makes common PDF tasks easier and more efficient. Key Features: PDF to Word Convert PDF files into Word documents for easier editing and reuse. PDF to Excel Convert PDF files into Excel spreadsheets, useful for table-based documents. PDF to Images Export PDF pages as clear images for viewing, saving, or sharing. Images to PDF Create PDF files from photos, screenshots, documents, receipts, notes, and other images. Merge PDFs Select multiple PDF files and combine them into one complete document. Split PDFs Split PDF files by page range and extract only the pages you need. Preview and Share Preview converted files, save them to history, and share them with other apps. History Management Keep conversion records for quick access and reuse. PDF Converter is designed for everyday mobile PDF work, with a clean interface and straightforward operation.
盖章
Easily add stamps and handwritten electronic signatures to PDF documents. Process contracts and agreements efficiently without printing or scanning, keeping your data secure locally on your device.
- Smart PDF stamping
- Across-page seal generation
- Handwritten electronic signatures
- Batch stamping and signing
- Local data processing
- Seamless document import/export
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【PDF Stamp】: Supports single‑page stamping and multi‑page batch stamping for round official seals, oval stamps and square stamps. 【Cross‑Page Seal】: Supports cross‑page stamping, automatically applying the seal on the edge of each page. 【Stamp Effects】: Provides stamp aging and imprint effect adjustments to replicate the real ink‑stamping look on physical paper. 【Stamp Creation】: Three stamp‑making options: extract seal from photo, import seal image, or generate seal by entering company information. 【Handwritten Signature】: Supports handwritten signatures with adjustable stroke thickness and font size. 【Secure & Reliable】: All processing is done locally. No private data is collected to fully protect your data security. 【PDF盖章】:支持单页盖章,多页批量盖章,无论是圆形公章、椭圆章还是方形印章 【盖骑缝章】:支持盖骑缝章,自动给每页边缘盖骑缝章 【印章效果】:支持印章做旧,印迹效果调整,还原真实纸质盖章水墨效果 【印章制作】:支持拍照提取印章,导入印章图片,以及输入公司信息制作印章三种方式 【手写签名】:支持手写签名,设置签名粗细和字体大小 【安全可靠】:本地化处理,不收集任何隐私数据,全方位保护您的数据安全 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is update cadence: 盖章 at weekly against PDF Converter's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PDF Converter sells 2 in-app purchases, starting at $2.99 per month and 盖章 sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
PDF Converter ships an update every 3 weeks, 盖章 weekly. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.
| Parameter | PDF Converter | 盖章 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 30 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | XIAOYUN.TECH | Hangzhou Niufen Network Technology Co., Ltd. |
In-app purchases
PDF Converter
- 月订阅$2.991 Month
- 年会员$9.99
盖章
- E‑Stamp Service$2.991 Month
- 无纸盖章永久版$9.99









