比较 PDF 工具
WhiskFile 与各大主流 PDF 工具的详细直接对比。功能、定价、免费额度、隐私以及 AI 能力——全部经过实际测试。
Sejda 对比 WhiskFile
最后测试时间：July 2026
Daily limit (7/day) is less disruptive than hourly throttling
Smallpdf 对比 WhiskFile
最后测试时间：July 2026
7 tasks/day free, no per-tool limits
Adobe Acrobat 对比 WhiskFile
最后测试时间：July 2026
67% cheaper than Adobe Acrobat Standard
iLovePDF 对比 WhiskFile
最后测试时间：July 2026
Completely ad-free on all tiers including free
PDF24 对比 WhiskFile
最后测试时间：July 2026
Modern, clean UI designed for speed
DocHub 对比 WhiskFile
最后测试时间：July 2026
Fill and sign plus 35+ additional tools DocHub doesn't have
Foxit PDF 对比 WhiskFile
最后测试时间：July 2026
Works in any browser — no installation required
Nitro PDF 对比 WhiskFile
最后测试时间：July 2026
Permanent free tier with 7 tasks/day
PDF Guru 对比 WhiskFile
最后测试时间：August 2026
7 free tasks per day with no credit card required
Xodo 对比 WhiskFile
最后测试时间：September 2026
7 free tasks/day — 7× more than Xodo's 1 action/day