Comparison

PDF vs PdfTranslator

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

PDF

Features
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PDF - AI Document Translator Break language barriers and translate your PDF documents instantly with the power of AI! Whether it’s an eBook, manual, report, or academic paper, PDF - AI Document Translator makes document translation fast, easy, and accurate β€” right from your phone. Key Features: PDF Translation: Upload any PDF and get it translated into your preferred language in seconds. AI-Powered Accuracy: Smart AI algorithms preserve the original meaning and formatting. Supports 100+ Languages: Translate between English, Spanish, French, Arabic, Chinese, Hindi, and more. Easy Export & Sharing: Save or share the translated PDF with just a tap. Secure & Private: Your documents are processed securely and never stored without permission. Who is it for? Students and researchers reading foreign-language papers Professionals handling global documentation Travelers and expats translating contracts, guides, or forms Anyone needing quick and reliable document translation! Why choose PDF - AI Document Translator? Say goodbye to copy-pasting from PDFs into translation apps. Our app handles complex documents with ease β€” making translation smarter, faster, and more convenient. Download PDF - AI Document Translator now and experience the future of document translation!

About

PdfTranslator

Features
Read full description

PdfTranslator: Professional AI Translator Keeping Original Layout. Deeply optimized for various mainstream document types including academic papers, business contracts, patent documents, and presentations. One-tap mutual translation, keeping the original formatting intact. Now optimized for iPad, with annotation and note mode. [ Core Advantages ] - Keep Original Layout: Deeply analyzes the underlying PDF grid. The translated text is perfectly embedded into its original position. Images, charts, tables, and multi-column layouts remain fully intact without shifting, offering a native reading experience. - Dual Translation Engines: Supports both a built-in local translation engine for 100% offline translation and an AI translation engine powered by the latest large language models (LLMs). - 100% Local & Offline: With the local engine, PDF layout analysis, rendering, and translation are completed entirely on your device with zero internet dependence. Medical records, unpublished papers, and confidential business contracts never leave your device, preventing privacy leaks from the source. - Cutting-Edge LLM Driven: Say goodbye to rigid word-for-word translation. The AI engine leverages the latest large language models for deep contextual understanding and semantic reorganization, delivering precise terminology and natural, fluent translations. Only the text fragments needed for translation are sent β€” your full document is never uploaded, and your translation data is never stored. - Smart Layout Optimization: Intelligently recognizes document elements such as titles and paragraphs. It dynamically plans the display position and font size of the translated text, optimizing readability while respecting the original layout. - Annotation & Note Mode: Mark up PDFs with pen, pencil, highlighter, and lasso tools β€” precision-tuned for Apple Pencil with palm rejection. Take handwritten notes directly on the page while reading, alongside the translation. [ Features ] - Flexible View Modes: Switch freely among "Original Text Only", "Translated Text Only", and "Bilingual Parallel Translation" modes. - Academic Journal Adaptation: Specially optimized for mainstream academic journal PDFs, perfectly handling complex chart hyphenation and formula text wrapping. - Comprehensive Multilingual Support: Easily translate among over 20 mainstream languages, including English, Japanese, Korean, German, French, and Spanish. - Hardware Acceleration: Fully leverages the computing power of Apple Silicon chips to process hundred-page documents in seconds, providing instant local rendering without the wait. - Scanned Document Support: Built-in OCR capabilities ensure scanned PDFs and documents achieve the exact same layout recognition and high-quality translation results. - Native iPad Support: Optimized for iPadOS with Apple Pencil and Split View, delivering a seamless large-screen reading experience. [ Target Audience ] - Researchers & Students: Swiftly conquer foreign-language academic papers and seamlessly track global research trends. - Legal & Business Professionals: Review commercial contracts, industry whitepapers, and patent specifications offline with total peace of mind. - Avid Readers: Read imported original PDF e-books and long technical manuals without any language barriers. [ Auto-Renewable Subscription Terms ] - Subscription & Pricing: You can subscribe monthly to unlock all premium features. Actual pricing will be displayed inside the app. - Auto-Renewal: Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period. Once charged, the subscription automatically renews. - Cancellation: To cancel, please turn off auto-renew manually in your iOS Account Settings at least 24 hours before the end of the current billing cycle. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pdf-translator.hyv5.cn/privacy

Screenshots

PDF4 screens
PdfTranslator4 screens

Verdict

The call

The clearest difference is update cadence: PdfTranslator at fortnightly against PDF's every 2 months. PDF's advantage is iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. PDF sells 4 one-off in-app purchases and PdfTranslator sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDF ships an update every 2 months, PdfTranslator fortnightly. The most recent releases landed on September 11, 2026 and September 20, 2026 respectively.

Scorecard2 real differences Β· 4 level
PDF versus PdfTranslator: the parameters behind the verdict, then further details
ParameterPDFPdfTranslator
PriceFreeFree
Update frequencyEvery 2 monthsFortnightly β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 β€” better26.0
Further details β€” not scored
Size7 MB94 MB
Age rating4+4+
DeveloperYogesh Rathod源 何

In-app purchases

4 purchases

PDF

One-time4
  • Five File Translation$4.99
  • Ten File Translator$8.99
  • Twenty File Translator$14.99
Show 1 more
  • Fifty File Translator$24.99
2 purchases

PdfTranslator

Subscriptions2
  • Monthly Subscription1 Month trial$14.991 Month
  • Annual Subscription$119.991 Year

Questions

Is PDF free?
PDF is free to download, with in-app purchases available.
Is PdfTranslator free?
PdfTranslator is free to download, with in-app purchases available.
Do PDF or PdfTranslator have ads?
Neither PDF nor PdfTranslator shows ads.
Which is updated more often, PDF or PdfTranslator?
PDF ships an update every 2 months, and PdfTranslator fortnightly. Most recently, PDF was updated on September 11, 2026 and PdfTranslator on September 20, 2026.

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