クイックスタート
This guide covers every UPDF feature:
- はじめる — Create your UPDF app account and basic setup
- How to Use UPDF AI — Chat with any PDF using the UPDF AI assistant
- How to Use Full PDF Editing — Edit text, images, and add shapes in any pdf file
- How to Use Cross-Platform Access — Sync files across Mac, Windows, iOS and Android
- How to Use Advanced OCR — Turn scanned documents into editable, searchable text
- How to Use File Conversion — Convert pdf to Word, Excel, PowerPoint, and other formats
- How to Use PDF to Mind Map — Turn a pdf file into a visual mind map instantly
所要時間： 各作品につき5分
このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案
このガイドを信頼する理由
I’ve used UPDF for over a year and tested every feature covered here. This tutorial on how to use UPDF comes from real hands-on work — not vendor screenshots.
UPDF is one of the most powerful PDF editor apps available today.
But most users only scratch the surface of its powerful features.
This guide shows you how to use every key feature, step by step, with screenshots and pro tips, so you reach the full potential of the UPDF app.
UPDF Tutorial
This complete UPDF tutorial walks you through every feature step by step. You will move from setup to advanced AI features that turn you into a power user.
UPDF
Edit, convert, and chat with any PDF in one app. UPDF is a powerful PDF editor and AI powered PDF editor that works on Windows, Mac, iOS, and Android. Try it free today.
Getting Started with UPDF
いずれかの機能を使用する前に、この初回設定を完了してください。
約3分かかります。
Watch this quick overview of my personal experience on ユーチューブ first:
それでは、各ステップを順を追って見ていきましょう。
ステップ1：アカウントを作成する
Go to the UPDF website and click Sign Up or Start Free Trial.
Enter your email and create a password to access the free version.
✓ チェックポイント: チェックしてください 受信トレイ 確認メールをお送りします。
ステップ2：アプリをダウンロードまたはアクセスする
Download UPDF for Windows or マック, or grab the app from the App Store or Google Play.
You can also open the web app at ai.updf.com on any computer.
Log in and here’s what the dashboard looks like:
✓ チェックポイント: You should see the main UPDF dashboard.
ステップ3：初期設定を完了する
Upload a pdf file or open multiple pdf files from cloud storage to test the tools.
Your one license works on Mac OS, Windows, iPad, iOS and Android with real-time sync.
✅ 完了: これで、以下のすべての機能をご利用いただけます。
How to Use UPDF AI
UPDF AI lets you have natural language pdf chat with any document.
以下に、その使用方法をステップごとに説明します。
Step 1: Open the UPDF AI Assistant
Click the UPDF AI icon and upload your pdf to start.
Step 2: Ask, summarize, or translate
使用する AIアシスタント to summarize, explain, translate, or rewrite text in your documents.
これがその様子です。
✓ チェックポイント: The updf ai アシスタント replies with clear answers drawn from your pdf.
Step 3: Search inside the document
Ask UPDF AI to find any answer or section within complex files 即座に.
✅ 結果: You can chat with PDFs and pull key points using unlimited ai capabilities.
💡 プロのヒント: UPDF AI gives unlimited usage, so explore ai features without restrictions.
How to Use UPDF Full PDF Editing
Full PDF Editing 変更できます 文章 and images directly inside a pdf file.
以下に、その使用方法をステップごとに説明します。
Step 1: Open editing mode
Click Edit PDF, then select any text or image to change it.
Step 2: Edit text, add shapes and images
Adjust font style, color, and size, add shapes, insert text boxes, or replace images.
これがその様子です。
✓ チェックポイント: Your edited pdf pages update live as you type.
Step 3: Save your changes
Click Save to keep your edits, or create a new copy of the pdf.
✅ 結果: You edited a pdf editor file without printing or rebuilding the document.
💡 プロのヒント: Use text boxes and add shapes to mark up contracts before you share PDFs with your team.
How to Use UPDF Cross-Platform Access
クロスプラットフォームアクセス lets you open the same files on every device.
以下に、その使用方法をステップごとに説明します。
Step 1: Sign in everywhere
Log into the UPDF app on Mac, Windows, iPad, or your phone.
Step 2: Sync through cloud storage
Save a pdf to UPDF Cloud so it syncs across all デバイス リアルタイムで。
これがその様子です。
✓ チェックポイント: The same pdf appears on every device within seconds.
Step 3: Keep editing anywhere
Open the file on iOS and アンドロイド and continue where you left off.
✅ 結果: Your work follows you across Mac OS, Windows, and mobile without manual transfers.
💡 プロのヒント: Pin frequent files to cloud storage for a faster pdf experience on any computer or device.
How to Use UPDF Advanced OCR
Advanced OCR lets you turn scanned documents into editable text.
以下に、その使用方法をステップごとに説明します。
Step 1: Open a scanned pdf
Upload a scanned pdf file or photo of paper documents.
Step 2: Run OCR recognition
Click OCR, pick your language, then let UPDF process the pages.
これがその様子です。
✓ チェックポイント: Words inside the scan are now selectable and ready to search.
Step 3: Edit and search the result
The non-editable file becomes searchable, editable text you can change or copy.
✅ 結果: Old paper files become living documents you can edit, search, and extract from.
💡 プロのヒント: Run OCR before translate so the ai assistant reads scanned documents correctly.
How to Use UPDF File Conversion
File Conversion lets you convert pdf into Word, Excel, and other formats.
以下に、その使用方法をステップごとに説明します。
Step 1: Open the Export tool
Click Export PDF and choose your output format.
Step 2: Pick Word, Excel, or images
Convert pdf to Word, PowerPoint, Excel, or image formats like JPEG.
これがその様子です。
✓ チェックポイント: The converted document keeps its original layout and formatting.
Step 3: Download the converted file
Click Convert, then download or save the new file to your computer.
✅ 結果: One pdf became an editable Word, Excel, or PowerPoint file in seconds.
💡 プロのヒント: Convert to JPEG when you need quick images for a web page or social post.
How to Use UPDF PDF to Mind Map
PDF to Mind Map lets you turn dense documents into a visual outline.
以下に、その使用方法をステップごとに説明します。
Step 1: Open your pdf file
Upload the pdf you want to map and open UPDF AI.
Step 2: Generate the mind map
Choose PDF to Mind Map and let UPDF extract the key points.
これがその様子です。
✓ チェックポイント: A branching map of the document’s main ideas appears on screen.
Step 3: Edit and export the map
Adjust branches, then download or share the map as needed.
✅ 結果: A long report became a clear mind map you can study or present.
💡 プロのヒント: Use the mind map with pdf chat to revise notes faster before a meeting.
UPDF Pro Tips and Shortcuts
After testing UPDF for over a year, here are my best tips for getting more from the software.
キーボードショートカット
| アクション | ショートカット |
|---|---|
| Open a file | Ctrl/Cmd + O |
| 保存 | Ctrl/Cmd + S |
| 検索 | Ctrl/Cmd + F |
| Add bookmarks | Ctrl/Cmd + B |
ほとんどの人が見逃す隠れた機能
- Batch tools: Compress, convert, or organize pdf pages across multiple pdf files at once to save time.
- Annotate everything: Highlight, underline, and add sticky notes or a watermark to mark up pdf pages fast.
- Share by link: Create a link to share PDFs so users can view without a download, and check view history.
UPDF Common Mistakes to Avoid
Mistake #1: Editing scanned documents without OCR
❌ 間違い: Trying to edit a scanned pdf as if it were normal text.
✅ 右: Run OCR first so the scanned file becomes editable, then make changes.
Mistake #2: Leaving unnecessary pages in the file
❌ 間違い: Sending bloated files with unnecessary pages still attached.
✅ 右: Use page tools to delete extra pages and organize pdf pages before you share PDFs.
Mistake #3: Sharing sensitive information unprotected
❌ 間違い: Emailing files with sensitive information and no protection.
✅ 右: Add a password or watermark, then create a secure link to share PDFs safely.
UPDF Troubleshooting
Problem: OCR text comes out wrong
原因： The wrong language was selected for the scanned documents.
修理： Re-run OCR and pick the correct language before processing the pages.
Problem: Files won’t sync across devices
原因： The pdf was saved locally instead of to cloud storage.
修理： Save the file to UPDF Cloud, then refresh the app on each device.
Problem: AI features are limited
原因： The free plan caps some ai capabilities.
修理： Upgrade the AI Assistant add-on to unlock unlimited UPDF AI usage.
📌 注記： If none of these fix your issue, contact UPDF support.
UPDF とは何ですか?
UPDF is a powerful PDF editor and ai powered pdf editor that edits, converts, and manages any pdf.
Think of it like a lighter, cheaper Adobe Acrobat with a built-in AI assistant.
It brings a game changer feel through seamless integration of editing and AI in one app.
Watch this quick UPDF review overview:
It includes these key features that people around the world find helpful:
- UPDF AI: Chat, summarize, explain, and translate documents with the AI assistant.
- 完全なPDF編集: Edit text and images, add shapes, and insert text boxes.
- クロスプラットフォームアクセス: Use one license on Mac, Windows, iOS and Android.
- Advanced OCR: Turn scanned documents into searchable, editable text.
- ファイル変換: Convert pdf to Word, Excel, PowerPoint, and other formats.
- Annotation Tools: Highlight, add sticky notes, bookmarks, and a watermark.
詳細なレビューについては、こちらをご覧ください。 UPDF review.
UPDFの価格
Here’s what UPDF costs in 2026:
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | $0 | Viewing and basic annotation |
| UPDFプロ | 年間39.99ドル | Full editing, OCR, and conversion |
| AIアシスタント | 年間79ドル | Unlimited UPDF AI and pdf chat |
| UPDFサイン | 年間69ドル | E-signatures and signed documents |
無料トライアル: Yes — the free version lets you test core tools before you buy.
返金保証: Yes — UPDF offers a refund window on paid plans.
💰 最もお得な価格: UPDF Pro — full editing and OCR at a low yearly price versus Adobe Acrobat.
UPDFと代替案
How does UPDF compare? Here’s the competitive landscape:
| 道具 | 最適な用途 | 価格 | 評価 |
|---|---|---|---|
| UPDF | AI + editing value | 年間39.99ドル | ⭐ 3.7 |
| PDFエキスパート | アップルユーザー | 年間79.99ドル | ⭐ 4.5 |
| フォックスイット | 仕事 チーム | $129/yr | ⭐ 4.4 |
| pdfフィラー | フォームへの記入 | 年間96ドル | ⭐ 4.2 |
| テナーシェア | Quick edits | 年間59.99ドル | ⭐ 4.0 |
| PDF要素 | Adobe alternative | 年間79.99ドル | ⭐ 4.5 |
| ニトロ PDF | 企業 | 年間179ドル | ⭐ 4.4 |
| ドックハブ | Free signing | 月額14ドル | ⭐ 4.6 |
おすすめ商品：
- 総合ベスト： UPDF — AI features and editing at a fair price.
- ベスト予算： DocHub — free pdf signing in the browser.
- 初心者におすすめ： PDFelement — a clean, easy interface.
- Appleユーザーに最適： PDF Expert — polished on Mac and iPad.
🎯 UPDFの代替品
UPDFの代替ソフトをお探しですか？おすすめの選択肢はこちらです。
- 🚀 PDFエキスパート: Fast, polished pdf editor built for Mac, iPad, and iOS users who want a native Apple feel.
- 🏢 フォックスイット： Strong pick for business teams that need shared workflows and 安全 across many files.
- 💼 pdfFiller: Great for filling and signing forms online, with simple web access and templates.
- ⚡ テナーシェア： Light tool for quick edits and conversion when you do not need full pdf editor power.
- 🌟 PDF要素: Popular Adobe Acrobat alternative with deep editing and a beginner-friendly interface.
- 🏢 Nitro PDF: Enterprise-grade editor with batch tools and admin controls for larger organizations.
- 💰 DocHub: Free-friendly browser tool for signing and light editing without any download.
全リストについては、こちらをご覧ください。 UPDFの代替案 ガイド。
⚔️ UPDF比較
UPDFが各競合他社と比べてどのような位置づけにあるのか、以下に示します。
- UPDFとPDF Expertの比較： UPDF wins on price and AI; PDF Expert wins on native Apple polish.
- UPDF対Foxit： UPDF is cheaper for solo users; Foxit fits bigger teams with admin needs.
- UPDFとpdfFillerの比較： UPDF edits better; pdfFiller is stronger for online form filling and signing.
- UPDF対Tenorshare： UPDF offers more depth and AI; Tenorshare suits fast, basic jobs.
- UPDFとPDFelementの比較： Close match; UPDF has unlimited AI, PDFelement has a longer track record.
- UPDFとNitro PDFの比較： UPDF costs far less; Nitro targets enterprise rollouts and compliance.
- UPDF vs DocHub: UPDF does full editing and AI; DocHub shines at free browser signing.
Start Using UPDF Now
You learned how to use every major UPDF feature:
- ✅ UPDF AI
- ✅ Full PDF Editing
- ✅ Cross-Platform Access
- ✅ Advanced OCR
- ✅ File Conversion
- ✅ PDF to Mind Map
次のステップ： どれか一つの機能を選んで、今すぐ試してみてください。
Most people start with UPDF AI.
5分もかかりません。
よくある質問
UPDFは無料ですか？
Yes. UPDF has a free version for viewing and basic annotation. A paid plan unlocks full editing, OCR, conversion, and unlimited AI features.
UPDFは安全ですか？
Yes. UPDF protects sensitive information with passwords, watermarks, and secure links, so you can share PDFs without exposing private documents.
UPDFはAdobe Acrobatと比べてどうですか？
UPDF is a cost-effective Adobe Acrobat alternative. It offers similar editing plus an AI assistant at a much lower yearly price.
UPDFはAIを使用していますか？
Yes. UPDF AI lets you chat with PDFs, summarize, explain, translate, and rewrite text, with unlimited usage on the AI Assistant plan.
Can UPDF convert PDF to Word and other formats?
Yes. You can convert pdf to Word, Excel, PowerPoint, and image formats like JPEG, and the layout stays close to the original file.
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