

⚡ 簡単な評価:
- 価格: pdfFiller starts at $8/month. UPDF starts at $39.99/year.
- 最適な用途: pdfFiller for forms, eSign, and contracts. UPDF for AI reading, OCR, and offline editing.
- 主な違い: pdfFiller is a cloud document management tool. UPDF is an AI-powered desktop and mobile PDF editor.
- 私たちのおすすめ: pdfFiller for most users. It handles the full paperwork job, from blank form to signed contract.

The cheaper PDF editor is not always the smarter buy.
UPDF costs less per year than pdfFiller.
But price is the smallest gap between these two tools.
pdfFiller is built to fill, sign, and send PDF forms.
UPDF is built to read, edit, and understand PDF files with AI.
Pick the wrong one, and you pay for tools you never use.
概要
We reviewed documentation, pricing pages, and user reviews for both pdfFiller vs UPDF.
Our writers also spent hands-on time with each PDF editor.
それらのメモは、以下の「チームが気づいたこと」のセクションに記載されています。
We compare editing, forms, eSign, AI, OCR, 安全、そして価格設定。
pdfFillerとは何ですか?
pdfFiller is a cloud-based PDF editor and document management platform.
It lets you edit, sign, store, and share PDF documents in one platform.
You can open it in a web browser, desktop app, or mobile app.
It shines at fillable PDF forms, contracts, and signed documents.
Searching for a simple PDF filler? This is the tool many people land on first.
pdfFiller says it serves over 56 million users globally as of 2026.

pdfフィラー
Turn any PDF into a fillable form in minutes. Send it, get it signed, and store it forever. Start with a 30-day free trial.
pdfFillerの価格設定
pdfFiller offers three subscription plans in 2026. There is no free tier.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 基本 | 月額8ドル | Solo users who edit and sign now and then |
| プラス | 月額12ドル | フリーランサー who send forms and contracts often |
| プレミアム | 月額15ドル | 中小企業 running a full signing workflow |
Pricing verified October 2026.

無料トライアル: Every plan comes with a 30-day free trial.
返金保証: Refunds go through the support team. Reviewers say refunds came quickly after surprise trial charges.
📌 注記: These prices assume a yearly contract. Month-to-month billing costs $20 (Basic), $30 (Plus), or $40 (Premium). Support response times also vary by plan.
⚠️ 警告: The trial turns into a paid subscription automatically. Some reviewers reported unexpected charges. Set a reminder to cancel before day 30 if you don’t plan to stay.
Key Benefits of pdfFiller
Here’s what makes pdfFiller worth a look.

- 膨大なテンプレートライブラリ: You get over 100 million pre-made legal, medical, and 仕事 forms. Most jobs start from a template, not a blank page.
- Strict Compliance: The platform meets HIPAA, GDPR, and SOC 2 Type II standards. That matters for clinics, law offices, and HR teams.
- Unlimited Cloud Storage: Keep all your documents in one secure place. Open them from any device, any time.
- Auto-Save Across Devices: Every edit saves on its own. Start on your laptop and finish on your phone.
- リアルタイムコラボレーション: Teammates can comment, highlight, and review the same file. Fewer email threads means fewer errors.
- Faster Contracts: pdfFiller claims it can cut contract turnaround by up to 24 times. It also estimates going paperless saves about $30 per document.

私たちのチームが気づいたこと
私たちの 作家 found pdfFiller quick to set up and used it to fill, sign, and send real forms. Here’s what stood out from that hands-on time:
pdfFiller Pros & Cons
✅ メリット
- Over 100 million ready-made form templates
- Build fillable forms with 文章 fields, checkboxes, and dropdowns
- Built-in eSignatures for contracts and signed documents
- HIPAA, GDPR, and SOC 2 Type II compliance
- Unlimited cloud storage on every plan
❌ デメリット
- No free tier, only a 30-day trial
- Some users report surprise charges after the trial
- Mobile app can fail to sign badly formatted PDFs
- Month-to-month billing costs much more than yearly
UPDF とは何ですか?
UPDF is an AI-powered PDF editor. Its developer is Superace Software Technology.
Windows上で動作します。 マック、iOS、Android に対応しています。
You can read, edit, annotate, organize, and convert PDF files.
It covers the core PDF features most people need when working with PDFs.
The UPDF AIアシスタント can summarize, translate, and explain long documents.
Most buyers pick it as a cheaper Adobe Acrobat alternative.

UPDF
Ask your PDFs questions and get answers fast. One license covers up to four devices. Strong pick for AI reading on a budget.
UPDFの価格
UPDF sells three yearly plans. Each one targets a different job.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| UPDFプロ | 年間39.99ドル | Editing, OCR, and conversion across devices |
| 人工知能 アシスタント | 年間79ドル | Chatting with, summarizing, and translating PDFs |
| UPDFサイン | 年間69ドル | Sending documents for e-signature |
Pricing verified October 2026.

無料トライアル: A free version lets you test most features. Saved files may carry a watermark.
返金保証: UPDF publishes a transparent refund policy on its website.
📌 注記: One paid plan covers Windows, Mac, iOS, and Android on up to four devices. Paid users get 10 GB of cloud storage. Free users get 1 GB.
⚠️ Price check: Some review sites list a one-time Pro Lifetime license around $69.99. Others say there’s no free version, only a trial. Confirm the current offer at checkout.
Key Benefits of UPDF
Here’s where UPDF earns its spot.

- AI That Reads For You: Chat with any PDF and ask questions about it. The AI Assistant plan has no chat limits.
- Full-Format Translation: Translate a whole PDF into your preferred language. The layout stays intact.
- Mind Maps From Documents: UPDF AI turns dense reports into mind maps. Great for students and researchers.
- OCR Built In: Scanned documents become editable, searchable PDFs. No extra app needed.
- Works on Different Platforms: One license runs on desktop and mobile. You can grab the Android app on Google Play.
- 低価格で始められます: Reviewers call it a cost-effective Adobe Acrobat alternative. You get similar core tools for less.

私たちのチームが気づいたこと
Our writer installed UPDF and used its AI and editing tools on everyday PDFs. Here’s what stood out from that time with the app:
UPDF Pros & Cons
✅ メリット
- UPDF AI summarizes, translates, and explains PDFs
- One license works on four devices across platforms
- OCR turns scans into editable text
- Clean, intuitive interface for beginners
機能比較
Both tools edit PDFs. The real gap is what happens after the edit. Here are ten features side by side.
| 特徴 | pdfフィラー | UPDF |
|---|---|---|
| 開始価格 | 月額8ドル | 年間39.99ドル |
| 無料プラン | ❌(30日間無料トライアル) | ✅(透かし入り) |
| Fillable Form Builder | ✅ | ✅(基本) |
| Built-in eSignatures | ✅ | ✅ (UPDF Sign plan) |
| AI Chat & Summaries | ❌ | ✅ |
| OCR | ❌ | ✅ |
| Offline Desktop Editing | ❌ (cloud-first) | ✅ |
| Unlimited Cloud Storage | ✅ | ❌ (10 GB) |
| HIPAA / SOC 2 Type II | ✅ | ❌ |
| 最適な用途 | Forms, contracts, teams | AI reading, solo editing |
1. PDF Editing
pdfFiller: You can edit PDF documents right in your browser. Add text boxes, images, company logos, and new pages in a few clicks. Changes save on their own, so you never lose work.

UPDF: UPDF edits text, images, and links much like a word processor. It runs offline on your desktop. Reviewers say it handles basic PDF editing well, but advanced tools lag behind pricier rivals.
2. eSignatures
pdfFiller: Secure eSign is part of every plan. You can sign, request signatures, and track signed documents in one place. Share a form by direct URL, and people sign without making an account.

UPDF: You can add a simple signature inside the editor. Full signing workflows need the separate UPDF Sign plan. That means a second bill if you send contracts often.
⚠️ 警告: pdfFiller’s mobile app sometimes won’t sign PDFs with odd formatting. Sign tricky files on desktop to be safe.
3. Annotation & Markup
pdfFiller: You can highlight text, add sticky notes, and leave comments. Teammates see the markup in real time. It works well for contract review.

UPDF: You can annotate PDFs with highlight, underline, and strikethrough. You can also add shapes, stamps, and comments. It’s a strong pick for solo study and reading notes.
4. File Conversion
pdfFiller: Converting files is simple. You can turn a PDF into Word docs or JPEG images and back again. It covers the basics most offices need.

The reverse direction works just as smoothly.

UPDF: You can convert PDF to Word, Excel, PPT, RTF, HTML, XML, PNG, and plain text. That’s a wider format list than pdfFiller. It’s handy if you export data often.
5. Fillable Forms & Templates
pdfFiller: This is where it wins. You can drop in fillable fields like text fields, checkboxes, and dropdowns. Save reusable templates, pre-fill data, and even collect payments through forms. For example, a clinic can turn a paper intake sheet into an online form.

UPDF: You can fill and create basic forms. There’s no huge template library. Building and sending forms at scale takes more manual work.
6. AI機能
pdfFiller: pdfFiller doesn’t focus on AI chat or summaries. Its strength is オートメーション for forms and signing. You won’t ask it questions about a report.
UPDF: The UPDF AI assistant lets you chat with your PDFs. It pulls answers fast from complex files. It also summarizes, translates, and builds mind maps.
Here’s the mind map tool in action.
7. OCR & Scanned Documents
pdfFiller: pdfFiller has no OCR tool. Scanned pages stay as images. You can still sign and annotate them.
UPDF: OCR turns scans into editable, searchable PDFs. You can then extract text or edit it. That ability saves hours of retyping. Some users say OCR help from support is hard to get when it misfires.
8. Page Organization
pdfFiller: You can merge, split, and compress files. Combine multiple PDF files into one, add pages, or delete pages. It all happens in the cloud.
UPDF: You can organize PDF pages by rearranging, splitting, merging, and cropping. It also lets you add bookmarks and search inside files. Several display modes make long PDF pages easier to read.
9. Security, Storage & Access
pdfFiller: It meets HIPAA, GDPR, and SOC 2 Type II. You can password-protect files and store unlimited documents. Import from cloud services like Google Drive and Dropbox in one step.

UPDF: UPDF Cloud syncs files across devices with 10 GB on paid plans. It’s compatible with Windows, Mac, iOS, and Android. But some users hit slow load times and frequent sign-outs.
⚠️ 警告: UPDF login prompts often come from browser or security software clearing saved logins. If login codes don’t arrive by email, check spam first. Even people who purchased UPDF’s perpetual license report these prompts.
10. 価格設定とコスト
Here are all six plans side by side.
| ティア | pdfフィラー | UPDF |
|---|---|---|
| 無料 | ❌(30日間無料トライアル) | Free version (watermarked) |
| エントリ | Basic: $8/month | UPDF Pro: $39.99/year |
| 真ん中 | さらに:月額12ドル | UPDF Sign: $69/year |
| トップ | Premium: $15/month | AI Assistant: $79/year |
pdfFiller: You pay more, but you get all the tools for forms, eSign, and storage in one subscription. There’s no paid add-on for signing. Yearly billing saves a lot versus monthly.
UPDF: The paid plan for editing is cheap. AI and signing are sold separately, so costs stack up. Buy only the plan you’ll actually use.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| Lowest yearly cost | UPDF | $39.99/year entry plan |
| Fillable forms at scale | pdfフィラー | Form builder plus huge template library |
| Contracts and eSign | pdfフィラー | Signing included in every plan |
| AI summaries and Q&A | UPDF | Built-in AI chat for PDFs |
| Scanned paper files | UPDF | OCR included |
| Healthcare or legal compliance | pdfフィラー | HIPAA and SOC 2 Type II |
| 役立つサポート | pdfフィラー | Better support reputation |
💰 あなたの予算
UPDF costs less if you only edit. Add AI and signing, and the gap shrinks fast.
🔌 あなたの技術スタック
pdfFiller connects with Google Drive and Dropbox in the web app. UPDF fits people who prefer native apps on various platforms.
📝 あなたのワークフロー
Sending forms and contracts out to clients? pdfFiller handles that loop end to end.
🎓 あなたの経験レベル
Both are user friendly for beginners. pdfFiller is easier for forms, while UPDF feels simpler for reading.
🆓 無料トライアルとデモ
Use pdfFiller’s 30-day trial on one real contract. Test UPDF’s free version on a long report.
🛟 サポートオプション
pdfFiller’s customer support gets mostly good marks for speed. UPDF support draws frequent complaints about no replies.
切り替えガイド
既にこれらのツールのいずれかをご利用ですか?切り替えた場合の変更点は以下のとおりです。
🔄 Switching from pdfFiller to UPDF?
✅ 得られるもの:
- AI chat, summaries, and translation
- スキャンした文書のOCR処理
- Offline editing on desktop and mobile
❌ 失うもの:
- The 100M+ template library
- Unlimited cloud storage
- HIPAA and SOC 2 Type II compliance
📋切り替え方法:
- Start by downloading your files and signed copies from your pdfFiller account.
- Install UPDF and sign in on each device.
- Upload files to UPDF Cloud, then cancel pdfFiller before renewal.
🔄 Switching from UPDF to pdfFiller?
✅ 得られるもの:
- Built-in eSign with no extra plan
- A full form builder with reusable templates
- Team collaboration in real time
❌ 失うもの:
- AI summaries and mind maps
- OCR on scans
- Exports to formats like RTF and XML
📋切り替え方法:
- Export your PDFs from UPDF Cloud to your computer.
- Start a pdfFiller free trial.
- Upload files or import them from Google Drive.
私たちのレビューで取り上げられなかったこと
This comparison focused on solo users and small teams. We didn’t test custom API work or bulk licensing for large companies. We also didn’t stress-test OCR on poor-quality scans. Our notes reflect the October 2026 versions. Both tools ship new features and performance improvements often. For deeper detail, read our full pdfFiller review.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | UPDF |
| 📝 Forms & Templates | pdfフィラー |
| ✍️ eSignatures | pdfフィラー |
| 🤖 AI機能 | UPDF |
| 🔍 OCR | UPDF |
| 🔒 セキュリティとコンプライアンス | pdfフィラー |
| ☁️ クラウドストレージ | pdfフィラー |
| 👶 使いやすさ | pdfフィラー |
| 🛟 カスタマーサポート | pdfフィラー |
| 🏆総合優勝 | pdfフィラー |
🏆 WINNER: PDFFILLER
pdfFiller wins 6 out of 9 categories.
最適な用途: Fillable forms, contracts and eSign, regulated industries
pdfFiller is the better pick for most people. Its powerful tools let you create, fill, sign, and store paperwork in one place. Compliance and unlimited storage make it safe for client data.
UPDF packs powerful features for reading and studying PDFs. Its AI and OCR are real strengths at a lower price. Just be ready for weaker support and login hiccups.
Need to save time on forms and signatures? Go with pdfFiller. Need to understand long documents fast? UPDF fits better.
More of pdfFiller Compared
Here’s how pdfFiller stacks up against other popular PDF tools.
pdfFiller vs DocHub
pdfFiller wins on: a far bigger template library, HIPAA and SOC 2 Type II coverage, and unlimited storage.
DocHub wins on: a free plan, tight Google Workspace ties, and a lighter, faster browser editor.
pdfFiller vs PDF要素
pdfFiller wins on: cloud access from any browser, built-in eSign requests, and live team collaboration.
PDFelement wins on: offline desktop editing, built-in OCR, and AI reading tools.
pdfFiller vs ニトロ PDF
pdfFiller wins on: lower entry pricing, ready-made forms, and mobile access out of the box.
Nitro PDF wins on: an Office-style desktop layout, deeper editing tools, and 仕事 licensing for big teams.
More of UPDF Compared
Here’s how UPDF holds up against other PDF editors.
UPDF vs PDF Expert
UPDF wins on: Android support, AI chat with documents, and one license across four devices.
PDF Expert wins on: a polished Mac and iPhone feel, smooth Apple Pencil markup, and a more reliable reputation.
UPDF vs Foxit
UPDF wins on: a cheaper yearly plan, mind maps from PDFs, and a cleaner beginner interface.
Foxit wins on: a free reader, company-wide rollout tools, and stronger security controls for IT teams.
UPDF vs Nitro PDF
UPDF wins on: mobile apps for iOS and Android, built-in AI, and a much lower price.
Nitro PDF wins on: mature eSign tools, better support for businesses, and deeper Windows editing.
よくある質問
pdfFillerの料金はいくらですか?
Plans cost $8, $12, or $15 per month on a yearly contract. Month-to-month billing runs $20, $30, or $40. Every plan starts with a 30-day free trial.
pdfFillerは安全に使用できますか?
Yes. It meets HIPAA, GDPR, and SOC 2 Type II standards. It’s a legitimate company with millions of users.
How do I cancel my pdfFiller subscription?
Open your account settings and choose to cancel your plan. Do it before the trial ends to avoid a charge. Contact support if a surprise charge appears.
UPDFは無料ですか?
Not fully. A free version lets you try most tools, but saved files may get a watermark. Paid plans start at $39.99 per year.
UPDFはAdobe Acrobatと比べてどうですか?
UPDF covers most core Acrobat tools for much less money. It adds AI chat and mind maps. Acrobat still leads on advanced features and support.













