PDF Master vs PDF AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Master
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Convert, edit & e-sign PDFs in seconds. Scan paper into searchable text with lightning-fast OCR. Merge, compress & protect documents wherever you are. PDF Master turns your iPhone and iPad into a complete PDF workstation: • Convert Word, Excel, PowerPoint and images to professional-quality PDFs • Export PDFs back to Office formats whenever you need to update them • Scan to PDF with automatic edge detection and shadow removal • OCR any page so text can be copied or searched • Edit & Sign – highlight, comment, fill forms and add legally binding e-signatures • Merge & Split – reorder pages or combine multiple files in seconds • Compress large documents for easy sharing without losing clarity • Secure sensitive files with passwords—or unlock PDFs you own Why PDF Master? • Instant, lossless conversions that keep original layout • Batch tools built for busy students and professionals • 100 % on-device processing—your documents never leave your phone • Clean, intuitive interface with zero learning curve Ideal for students, professionals, and anyone who works with documents regularly. Subscription Terms: We offer flexible VIP subscription plans including weekly, monthly, and yearly options. Prices may vary depending on your region and will be clearly displayed in the app. Subscriptions can be managed and canceled at any time via your Apple ID settings. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Legal & Support • Privacy Policy:https://docs.qq.com/doc/DZFVVd1NtR2RQYm90 • Terms of Use:https://docs.qq.com/doc/DZERMRnF1VHhVZktB • Technical Support:https://docs.qq.com/doc/DZEJwTXR2dldWUmpP
PDF AI
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With PDF Editor powered by AI, you have freedom to edit any element in your PDF. Effortlessly edit any image, text or even sign. You can even merge and convert your PDF files into other types of documents easily. Whether you're a student, professional, or simply need to work with PDFs, we've got you covered. Experience hassle-free editing with our user-friendly interface. Streamline your PDF workflow today! USE PDF EDITOR TO CONVERT DOCUMENTS • Convert PDF to high-resolution print or small web PDF files. • Convert PDF to JPG and PNG. • Convert PDF to Word. • Convert any image to PDF. • Convert Word to PDF. • Convert PowerPoint to PDF. • JPG to PDF: Take a picture of a document and save it to PDF. • MS Office Converter: Convert office documents to PDF files. Turn your PDF files into editable Office formats such as Word, Excel, Powerpoint. • Extract images from PDF: Extract images from your PDF document with high quality. Convert your own images to single or multiple PDF files. PDF EDITOR • Annotate PDF: Simply highlight the relevant text in your PDF. Add notes and annotations to PDF documents, leave comments, draw or insert images to PDF. Choose your format of annotation. • Fill and sign forms: Quickly fill out a PDF form by typing text and e-sign it using your finger. • PDF Reader: View, edit and modify PDF files stored on your device whenever you need. OPTIMIZE, ORGANIZE AND PROTECT DOCUMENTS • Compress PDF: Reduce the filesize of your document while keeping visual quality. • Merge PDF: Combine multiple documents into a single PDF file. • Split PDF: Split PDF pages or extract pages to multiple PDF documents with high quality. • Rotate PDF: Rotate specific PDF pages and adjust their fit within your doEcument. • PDF Protection: Remove or add PDF passwords. • Add page numbers to PDF: Customize your PDF files. Choose position, typography, and size of your page numbers. • Watermark PDF: Choose an image or a text and add it to your PDF document. Select position, transparency or typography for the best result. Download this superior office app to support your work and study, you will have both a PDF viewer, ebook reader, and PDF editor at the same time. Simple, free, and lightweight, really worth a try! PREMIUM SUBSCRIPTION - You can subscribe to get unlimited access to certain app features. - Subscriptions are billed monthly, or annually at the rate selected depending on the subscription plan. Privacy Policy: https://standardiosapps.blogspot.com/2023/12/privacy-policy.html EULA & Terms of Use: https://standardiosapps.blogspot.com/2023/12/terms-of-use.html
Screenshots
Verdict
PDF Master and PDF AI are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 Master sells 6 in-app purchases, starting at $0.99 per 7 days and PDF AI sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | PDF Master | PDF AI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 15 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | 程 张 | Doreen Eichelberger |
In-app purchases
PDF Master
- PDF转换器Pro周VIP3 Days trial$0.997 Days
- PDF转换器Pro月会员3 Days trial$3.991 Month
- Weekly PDF Premium7 Days trial$7.997 Days
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- PDF转换器Pro年会员3 Days trial$12.991 Year
- Monthly PDF Premium$12.991 Month
- Annual PDF Premium$29.991 Year
PDF AI
- 1 Month Premium3 Days trial$5.991 Month
- 1 Year Premium3 Days trial$39.991 Year









