PDFNoob vs Revisely

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.

Revisely is a web service for students, teachers and professionals creating learning materials from uploaded or pasted content. Its AI tools generate summaries, flashcards and quizzes. Flashcards can come from pictures, notes, PDFs, PowerPoints and other documents, then be practiced, shared, printed or exported. Quiz generation uses notes, textbooks, PDFs or PowerPoints and can help edit questions and assess answers. A notes tool can extend, shorten, rephrase, proofread, translate or change a text’s tone. The video summarizer accepts publicly viewable YouTube links, with summaries users can edit. Generators support content in over 50 languages. Uploads include PNG, JPG, JPEG, PDF, DOCX and PPTX files, plus typed text. The free Basic plan allows five AI-chat messages daily, five pages per document and 25,000 characters per text upload. Annual billing costs $4.99 per month, billed annually; monthly billing costs $11.99 per month. Flashcards export to Anki or text formats, while quiz exports to Moodle, Canvas or Blackboard require Professional or Business plans.