PDFNoob vs Quizzen

PDFNoob is a browser-based suite for editing, compressing, converting, and managing PDF files. Its editor can add or change text, insert images and signatures, fill forms, and add, remove, or reorder pages. The site also lists tools for conversion, compression, OCR, summarization, question generation, signing, metadata editing, and page management. The editor is free without sign-up and does not add a watermark, but its upload limit is 10 MB per file. The free Merge PDF tool accepts up to 20 files and 100 MB total. PDFNoob says files on the editor and merge pages are deleted within one hour; its privacy policy says server-processed files are removed after the requested operation. Many operations run locally in the browser. The service says it does not index uploaded contents or use them to train AI, and that files are encrypted in transit with HTTPS. On a phone, users can choose files from Photos, Files, iCloud, or Google Drive. It is listed for Android, iOS, macOS, web, and Windows. The free tier is described as covering most personal and small-business needs.

Quizzen uses AI to turn documents into quizzes, exams, and assessments. It accepts PDF, Word (.docx), and PowerPoint (.pptx) files, and says scanned PDFs can be processed with OCR. Users choose question counts and difficulty, generating multiple-choice, true/false, or fill-in-the-blank items that can be reviewed and edited before export. PDF and CSV exports are available to all users; paid plans add Moodle XML, Kahoot, and Wooclap formats. Enterprise users can send text to /api/v1/generate and receive structured JSON questions. Uploaded documents are automatically deleted after processing, while the terms say users retain ownership of source documents and generated quizzes. Student features include practice sets, progress tracking, mobile-optimized quizzes, and retakes. The Free plan costs nothing and allows three quizzes every 30 days, up to 10 questions each, with PDFs up to 20 pages. Standard Quiz costs $0.99, paid once; Premium Quiz costs $1.49, paid once. Pro costs $3.99 a month, billed annually at 39.90 USD. Enterprise costs $29 a month, billed annually at 290 USD.