{
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  "@type": "SoftwareApplication",
  "@id": "https://www.nuanyue.com/software/pdf-justfit/#software",
  "name": "PDF JustFit",
  "description": "PDF JustFit is an on-device PDF toolkit for iPhone and iPad. It compresses a document to a target file size, converts between PDF, images and text, and answers questions about a document with a private on-device assistant.",
  "url": "https://www.nuanyue.com/software/pdf-justfit/",
  "mainEntityOfPage": "https://www.nuanyue.com/software/pdf-justfit/",
  "operatingSystem": "iOS, iPadOS",
  "applicationCategory": "BusinessApplication",
  "publisher": {
    "name": "Nuanyue",
    "url": "https://www.nuanyue.com"
  },
  "sameAs": [
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    "https://apps.apple.com/us/app/pdf-justfit-compress-ai-chat/id6809696123",
    "https://apps.apple.com/cn/app/pdf-justfit-pdf%E5%8E%8B%E7%BC%A9-%E6%A0%BC%E5%BC%8F%E8%BD%AC%E6%8D%A2%E4%B8%8Eai%E6%99%BA%E8%83%BD%E9%97%AE%E7%AD%94/id6809696123"
  ],
  "softwareVersion": "1.0",
  "offers": {
    "@type": "Offer",
    "price": "9.99",
    "priceCurrency": "USD"
  },
  "nuanyue:record": {
    "schemaVersion": 1,
    "id": "software:pdf-justfit",
    "slug": "pdf-justfit",
    "name": "PDF JustFit",
    "type": "SoftwareApplication",
    "entityType": "PDF tool",
    "description": "PDF JustFit is an on-device PDF toolkit for iPhone and iPad. It compresses a document to a target file size, converts between PDF, images and text, and answers questions about a document with a private on-device assistant.",
    "shortDescription": "Compress, convert and question PDFs on iPhone and iPad — all on-device.",
    "answer": "PDF JustFit is an on-device PDF toolkit published by Nuanyue for iPhone and iPad. It compresses an oversized document to an exact target size — 2 MB for an email attachment, for example — using a two-stage solver, and offers four one-tap quality presets. It also converts between PDF, images and text, runs OCR on scanned pages, signs and annotates documents, and answers questions about a PDF with a private on-device assistant that cites page numbers. Compression, conversion, OCR and AI all run on the device; the only network use is a one-time AI model download of about 1 GB. It is a paid app listed at $9.99 on the App Store and requires iOS or iPadOS 26.5 or later.",
    "page": "https://www.nuanyue.com/software/pdf-justfit/",
    "dataUrl": "https://www.nuanyue.com/data/software/pdf-justfit.json",
    "categories": [
      "productivity",
      "utilities"
    ],
    "tags": [
      "PDF compressor",
      "PDF converter",
      "on-device AI",
      "iOS"
    ],
    "platform": [
      "iOS",
      "iPadOS"
    ],
    "minOsVersion": "iOS 26.5",
    "architecture": [],
    "featured": false,
    "pricing": "paid",
    "pricingDescription": "Paid download; listed at $9.99 on the US App Store, with no free tier or subscription.",
    "price": {
      "amount": 9.99,
      "currency": "USD"
    },
    "currentVersion": "1.0",
    "releaseDate": "2026-09-22",
    "openSource": false,
    "website": "https://pdfjustfit.nuanyue.com",
    "documentation": "https://pdfjustfit.nuanyue.com/support/product-facts/",
    "appStore": "https://apps.apple.com/us/app/pdf-justfit-compress-ai-chat/id6809696123",
    "appStoreCn": "https://apps.apple.com/cn/app/pdf-justfit-pdf%E5%8E%8B%E7%BC%A9-%E6%A0%BC%E5%BC%8F%E8%BD%AC%E6%8D%A2%E4%B8%8Eai%E6%99%BA%E8%83%BD%E9%97%AE%E7%AD%94/id6809696123",
    "developer": {
      "name": "Nuanyue",
      "website": "https://www.nuanyue.com"
    },
    "icon": "/apps/pdf-justfit.png",
    "features": [
      "Compresses to an exact target size, such as 2 MB, using a two-stage solver",
      "Four quality presets (Light, Balanced, Strong, Extreme) plus Smart and Maximum modes",
      "Converts between PDF, images and text, and runs OCR on scanned pages",
      "Signs and annotates documents with Apple Pencil or a finger",
      "Answers questions about a PDF on-device, with page citations",
      "Processes files locally — no uploads, no account and no tracking"
    ],
    "useCases": [
      "Shrinking a PDF to fit an upload or email size limit",
      "Converting a PDF to images or text, or the reverse",
      "Asking questions about a long document on a phone or tablet",
      "Working with sensitive documents that should not be uploaded"
    ],
    "formats": [],
    "integrations": [],
    "pros": [
      {
        "text": "Compresses to an exact target size — set 2 MB and a two-stage solver finds the best quality that fits, rather than offering only fixed presets.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "text": "Compression, conversion, OCR and AI chat all run on-device; documents are not uploaded and no account is required.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "text": "Bundles conversion, OCR, signing, annotation and on-device document chat in one iPhone and iPad app rather than several.",
        "status": "editorially-reviewed",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      }
    ],
    "cons": [
      {
        "text": "iOS and iPadOS only — there is no macOS or Windows version, and the developer notes that Mac compatibility is listed by the App Store but not verified for macOS.",
        "status": "verified",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "text": "The on-device AI assistant needs an extra model download of about 1 GB before it works offline.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      }
    ],
    "whoIsItFor": [
      "iPhone and iPad users who handle PDFs regularly",
      "People who need a PDF under a specific size limit",
      "Users who prefer document processing to stay on-device"
    ],
    "notFor": [
      "Mac users — PDF JustFit is an iPhone and iPad app, not a macOS app",
      "Users who need desktop-class page layout or prepress tools"
    ],
    "limitations": [
      "iOS and iPadOS only; there is no macOS version",
      "Requires iOS or iPadOS 26.5 or later"
    ],
    "firstUse": {
      "installation": {
        "value": "Install from the App Store on an iPhone or iPad running iOS or iPadOS 26.5 or later; the download is about 28 MB.",
        "status": "verified",
        "source": "app-store",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      "firstLaunch": {
        "value": "Opens on a document picker: choose a PDF from Files, or send one in from the share sheet, then pick a target size, a preset or another tool.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      "systemIntegration": {
        "value": "Adds a share-sheet extension so a PDF can be compressed from Mail, Files or Safari without opening the app first.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      "appleSilicon": {
        "value": null,
        "status": "unknown"
      }
    },
    "updates": [
      {
        "version": "1.0",
        "date": "2026-09-22",
        "summary": "Initial App Store release; the current version.",
        "status": "verified",
        "source": "app-store"
      }
    ],
    "faq": [
      {
        "question": "Is PDF JustFit free?",
        "answer": "No. It is a paid download listed at $9.99 on the US App Store, with no free tier and no subscription.",
        "status": "verified",
        "source": "app-store",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "question": "Does PDF JustFit upload my PDFs?",
        "answer": "According to the developer, no. Compression, conversion, OCR and AI chat are designed to run on-device, and the only network use is downloading AI model weights — never documents.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "question": "Which devices and OS does PDF JustFit need?",
        "answer": "It is an iPhone and iPad app requiring iOS or iPadOS 26.5 or later. There is no macOS version.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "question": "How large is the AI model, and does chat work offline?",
        "answer": "The recommended on-device model is about 1 GB and is downloaded once; after that, document chat works offline. It uses open models including Gemma 3 and Qwen3.",
        "status": "developer-stated",
        "source": "official",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "question": "What is the latest PDF JustFit version?",
        "answer": "1.0, released to the App Store on 22 September 2026.",
        "status": "verified",
        "source": "app-store",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      }
    ],
    "relationships": [
      {
        "target": "pdfgear",
        "type": "alternative",
        "reason": "Both are AI-capable PDF tools, but PDFgear is a free Mac PDF editor while PDF JustFit is a paid, on-device iPhone and iPad toolkit.",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "target": "compresso",
        "type": "similar",
        "reason": "Both shrink files locally, but CompressO is an open-source Mac tool for video and images while PDF JustFit targets PDFs on iOS.",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "target": "neatwise",
        "type": "similar",
        "reason": "Both are Nuanyue apps for managing files on Apple devices, but Neatwise cleans a Mac's storage while PDF JustFit works with PDFs on iPhone and iPad.",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      },
      {
        "target": "pixpack",
        "type": "similar",
        "reason": "Both are Nuanyue compression tools that process files on-device, but PixPack compresses images on macOS while PDF JustFit handles PDFs on iOS.",
        "verifiedAt": "2026-10-05T00:00:00.000Z"
      }
    ],
    "sources": [
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        "url": "https://apps.apple.com/us/app/pdf-justfit-compress-ai-chat/id6809696123",
        "title": "PDF JustFit on the Mac App Store",
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        "id": "pdf-justfit:official",
        "type": "official_website",
        "url": "https://pdfjustfit.nuanyue.com",
        "title": "PDF JustFit — official website",
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        "id": "pdf-justfit:developer",
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        "id": "pdf-justfit:documentation",
        "type": "documentation",
        "url": "https://pdfjustfit.nuanyue.com/support/product-facts/",
        "title": "PDF JustFit — documentation",
        "trustLevel": "C",
        "accessedAt": null
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        "status": "developer-stated",
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        "status": "developer-stated",
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        "lastVerified": "2026-10-05"
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        "status": "verified",
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        "value": "The on-device AI assistant needs an extra model download of about 1 GB before it works offline.",
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  }
}