Smallpdf 對比 WhiskFile
Smallpdf 是網路上最知名的 PDF 工具之一，但它限制免費使用者每天只能合併 2 個 PDF 檔案，且會在未明確告知的情況下自動開啟 14 天試用期。WhiskFile 每天提供 7 個免費任務，沒有隱藏收費，無需信用卡，且提供更多工具選擇。
- 每天 7 個免費任務，無單一工具使用限制
- 無自動試用、無隱藏收費、無需信用卡
- 所有方案皆免費提供 OCR 功能
- 具備 38 個端點的 REST API (Pro 版)
- 具備更佳隱私架構的 AI 功能
- 品牌成熟 — 擁有超過 2,500 萬名月活躍使用者
- 介面簡潔精緻
- Pro 方案包含基礎 AI 功能
- 整合 Google Drive 與 Dropbox
- 免費方案每天僅限合併 2 個檔案
- 未明確告知即自動開啟 14 天試用 — 評論中常有意外扣款的投訴
- OCR 功能需付費才能使用
定價
| 方案 | WhiskFile | Smallpdf |
|---|---|---|
| Free tier | Free — 7 tasks/day, 50 MB | Free — 2 tasks/day per tool, 15 MB some tools |
| Pro | $4.99/month or $39.99/year | $4.99/month or $72/year |
| Teams | $29/month (10 seats) | $12/user/month (min 2) |
Pricing checked on: September 24, 2026. Smallpdf pricing page
功能對比
| 功能 | WhiskFile | Smallpdf |
|---|---|---|
| 免費方案無浮水印 | ||
| 付費方案無限任務 | ||
| 無意外的試用扣款 | Trial auto-starts without clear opt-in | |
| 檔案於 1 小時後自動刪除 | Not clearly disclosed | |
| 依書籤分割 PDF | ||
| 依文字/關鍵字分割 PDF | ||
| 貝茨編號 (Bates numbering) | ||
| 依內容重新命名 PDF | ||
| AI PDF 摘要 | Pro+ | Pro (basic) |
| AI PDF 對話 | Pro+ | Pro (basic) |
| 自動遮蔽個人識別資訊 (PII) | Pro+ | |
| REST API | Pro+ (38 endpoints) | Limited (2 endpoints documented) |
| 批次處理 | Pro+ | Pro+ |
| 電子簽名 / 表單填寫 | ||
| OCR | Pro only | |
| 工具總數 | Pro (eSign) | |
| 輸出格式 | ||
| 平台 | ||
| Accessibility Tools (checker + fix) | ||
| AI Contract Analysis | Pro+ | |
| Document Workspace (folders, tags, search) | ||
| Total tools | 101 | ~22 |
| Output formats | 20+ (PDF, Word, Excel, PPT, JPG, PNG, etc.) | ~12 formats |
| Platform | Any browser (no install) | Browser + desktop app |
WhiskFile 最適合用於
- 您在免費方案下每天需要合併超過 2 個 PDF
- 您曾因 Smallpdf 的自動試用扣款而感到困擾
- 您需要免費的 OCR 功能
- 您希望在不犧牲文件隱私的前提下使用 AI 功能
Smallpdf 最適合用於
- 您高度依賴工具內建的 Google Drive / Dropbox 整合功能
- 您需要團隊已經熟悉的 Smallpdf 電子簽名工作流程
Which Features Matter?
If you process large PDFs
- Maximum file size limits
- Page count restrictions
- Processing speed
- Batch processing support
If you process scanned documents
- OCR availability and accuracy
- Supported OCR languages
- Searchable PDF output
- Free vs paid OCR access
If privacy matters
- Browser vs server processing
- File retention and deletion
- Encryption standards
- Privacy documentation
Common Workflows Compared
Merge multiple PDFs
Upload files → reorder → Merge → download. 7 free tasks/day, no per-tool cap.
Upload files → reorder → Merge → download. Free tier limited to 2 merges per day.
Compress a large PDF
Upload → choose compression level → download. Browser-based for most files.
Upload → Smallpdf auto-compresses → download. Server-side; free tier limits apply.
Convert PDF to Word
Upload PDF → instant conversion → download DOCX. Free, no account.
Upload PDF → Smallpdf converts server-side → download. Free with daily task limits.
OCR a scanned PDF
Upload scanned PDF → auto-OCR → searchable PDF. Free for all users.
OCR is locked behind Smallpdf Pro. Free users cannot access OCR.
Sign a PDF
Upload → draw/type signature → place → download.
Upload → draw/type/upload signature → place → download. eSign files retained 14 days.
At a Glance
WhiskFile focuses on
- Browser-based document utilities
- AI-powered PDF workflows
- Privacy-focused processing
- Developer-friendly REST API
Smallpdf focuses on
- PDF editing and conversion
- Document compression
- eSign workflows
- Cloud storage integrations
Privacy & Security
| Privacy aspect | WhiskFile | Smallpdf |
|---|---|---|
| Browser processing | Yes — most tools (69 of 101) | No — server-side processing (AWS, EU region) |
| File retention | Auto-deleted after 1 hour | Deleted within 1 hour for most tools; eSign files retained 14 days |
| Encryption | TLS 1.3 in transit, AES-256 at rest | TLS in transit; ISO 27001 certified |
| GDPR | Compliant | Compliant (eIDAS compliant for eSign) |
OCR (Optical Character Recognition)
| OCR feature | WhiskFile | Smallpdf |
|---|---|---|
| OCR available | Pro only | |
| Free access | Yes — free for all users | false |
| Languages | 100+ languages | Not publicly specified |
| Searchable PDF output | ||
| Batch OCR | Pro+ | Pro only |
OCR locked behind paid plan; not available on free tier
AI-Powered Features
| AI feature | WhiskFile | Smallpdf |
|---|---|---|
| Chat with PDF | Pro+ | Pro (limited free: 4 docs, 30 prompts/day) |
| Summarization | Pro+ | Pro (adjustable detail level) |
| Question answering | Pro+ | Pro (AI Question Generator) |
| PII auto-redaction | Pro+ | |
| Translation | Pro+ | Pro (AI PDF Translate) |
Free users get limited AI access: 4 documents, 30 prompts/day, 25K-35K word cap
Cloud Integrations
| Integration | WhiskFile | Smallpdf |
|---|---|---|
| Google Drive | On roadmap | |
| Dropbox | On roadmap | |
| OneDrive | On roadmap | |
| URL import | ||
| API access | Pro+ (38 endpoints) | Limited (2 documented endpoints) |
Chrome extension and Google Workspace add-on available
Account Requirements
WhiskFile
No — first 3 tasks without account, up to 7/day with free account
Smallpdf
Not strictly required but frequently prompted; cloud features require Pro
Supported File Formats
WhiskFile (20 formats)
Smallpdf (12 formats)
How We Compare PDF Tools
We compare publicly documented features, limits, pricing, supported formats, integrations, account requirements, and privacy information. Competitor information can change, so pricing and limits should be checked against the provider's current documentation. Information marked “Not publicly specified” means we could not verify it from the competitor's official sources at the time of review.
Last reviewed: September 24, 2026
常見問題
Smallpdf 使用者最常見的抱怨包括：每天僅限 2 個檔案的免費額度、試用期自動開始導致的意外扣款，以及將 OCR 功能鎖在付費牆後。WhiskFile 解決了這三個問題。
WhiskFile 擁有 90 種工具，而 Smallpdf 約有 22 種。WhiskFile 不僅涵蓋了 Smallpdf 的所有功能，還提供獨家工具，如依書籤分割、貝茨編號、依文字重新命名以及依文字分割。
是的。WhiskFile 每天提供最多 7 個免費任務，無需註冊帳號，也無需信用卡。不會自動開啟任何試用。
是的。WhiskFile Pro 包含 AI PDF 摘要、AI PDF 對話以及自動遮蔽 PII 功能 — 與 Smallpdf 的 AI 功能相當，且具備更強的隱私架構（僅傳送文字至 AI，而非原始檔案）。
直接整合 Drive/Dropbox 的功能已在開發藍圖中。目前，您可以先從這些服務下載檔案，再上傳至 WhiskFile — 步驟相同，只是改為手動操作。
結論
Smallpdf 擁有精緻的介面與龐大的使用者群，但其嚴格的免費方案（每天僅限合併 2 個檔案）、自動扣款的試用機制以及有限的 API 功能，使得 WhiskFile 成為需要更多免費額度、透明計費與開發者友善 API 使用者的更佳選擇。若您高度依賴 Google Drive 或 Dropbox 整合功能，Smallpdf 則較具優勢。
Sources
- Pricing page checked 2026-09-24
- Trust center checked 2026-09-24
- Support checked 2026-09-24
準備好試用 WhiskFile 了嗎？
免費開始 — 每天 7 個工作任務，無需帳戶，無需信用卡。
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