iLovePDF is a popular freemium PDF service with 25+ tools and ~150 million monthly users. It works well, but it has two structural limits that PDFKits removes: every file is uploaded to iLovePDF's servers, and the free tier caps file size and daily task count. This page compares the two and shows when to switch.
Privacy. iLovePDF uploads your file, processes server-side, deletes after 2 hours (per their policy). PDFKits processes everything in your browser via WebAssembly — your file never leaves your device. Free tier. iLovePDF caps free at 25 MB per file and limits daily tasks. PDFKits has no daily limit and no file size cap beyond your browser memory (~500 MB practical). Watermarks. iLovePDF Premium output is watermark-free; free output may have a watermark on some operations. PDFKits is always watermark-free. Signup. iLovePDF requires account for some workflows. PDFKits never requires signup.
(1) Sensitive data — legal, medical, financial PDFs should not be uploaded to a third-party server. (2) High volume — if you process more than a few PDFs per day, iLovePDF's free limits get annoying fast. (3) Large files — over 25 MB you hit iLovePDF's free cap immediately. (4) Offline-capable workflow — PDFKits works once the page is loaded; iLovePDF needs full server round-trip.
Merge PDF, Split PDF, Compress PDF, PDF to Word, Word to PDF, PDF to JPG, JPG to PDF, Sign PDF, Edit PDF, Protect PDF, Unlock PDF, Redact PDF, OCR PDF, Chat with PDF, and 31 more.
Browse all 45 free tools. No signup, no upload, no daily limit, no watermark. For a detailed comparison vs other services: Best Free PDF Tools 2026.