Best Smallpdf Alternative: 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。
最後測試日期：July 2026 · 基於實際動手測試。
免費方案對比
| 功能 | WhiskFile | Smallpdf |
|---|---|---|
| Daily task limit | 7 tasks across all tools | 2 tasks per tool per day |
| Max file size | 50 MB | Varies by tool (15–100 MB) |
| Watermarks | None | None |
| Credit card required | No | No (but trial auto-starts) |
| File deletion | Auto-deleted after 1 hour | Not clearly disclosed |
定價對比
| 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 |
為什麼要切換至 WhiskFile
- 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
Smallpdf 在以下情況依然勝出：
- 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
何時從 Smallpdf 切換至 WhiskFile
- 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
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.
Privacy & Security Comparison
| 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 & AI Features
OCR
- WhiskFile
- Free for all users
- Smallpdf
- false
OCR locked behind paid plan; not available on free tier
AI Features
- WhiskFile
- Pro+ (Chat, Summarize, Redact)
- Smallpdf
- Pro (limited free: 4 docs, 30 prompts/day)
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 | |
| API access | Pro+ (38 endpoints) | Limited (2 documented endpoints) |
如何從 Smallpdf 切換
無需遷移 — WhiskFile 與 Smallpdf 一樣是網頁工具。請造訪 whiskfile.com，即可立即使用任何工具。待您的計費週期結束後，取消 Smallpdf 訂閱即可。
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.
Last reviewed: September 24, 2026
我們的評語
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。
常見問題
- 為什麼人們在尋找 Smallpdf 的替代方案？
- 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 是否擁有與 Smallpdf 相同的工具？
- 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。
- WhiskFile 是免費使用的嗎？
- 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。
- WhiskFile 是否像 Smallpdf 一樣具備 AI 功能？
- 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）。
- 我可以從 Google Drive 或 Dropbox 匯入檔案嗎？
- 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。
- Does Smallpdf auto-start a trial without warning?
- Multiple user reports indicate Smallpdf's 14-day Pro trial can start without explicit opt-in, leading to unexpected charges. WhiskFile never auto-starts a trial and never requires a credit card for free usage.
- Is Smallpdf's OCR free?
- No. Smallpdf OCR is locked behind the Pro plan. WhiskFile provides OCR for free to all users, with 100+ language support.
- What happens to uploaded files on Smallpdf?
- Smallpdf states most files are deleted within 1 hour, but eSign files may be retained for 14 days. Smallpdf processes files server-side on AWS (EU region). WhiskFile auto-deletes after 1 hour and processes most tools in the browser.
- Does WhiskFile have a REST API like Smallpdf?
- WhiskFile Pro includes a REST API with 38 documented endpoints. Smallpdf's API is extremely limited, with only 2 publicly documented endpoints.
- Which is cheaper — WhiskFile or Smallpdf?
- Monthly price is the same ($4.99/month). Annually, WhiskFile is $39.99/year vs Smallpdf's $72/year — 45% cheaper. WhiskFile Pro also includes features Smallpdf charges extra for.
Sources
- Pricing page checked 2026-09-24
- Trust center checked 2026-09-24
- Support checked 2026-09-24