GuruOwl

You can try it before creating an account. The PDF to Anki page has a free demo that converts the first 3 text pages of a PDF up to 5 MB with no signup, so you can see real cards from your own material first.

For a full document you create a free account, which includes 50 credits, and upload the PDF (up to 50 MB) under Materials. You choose Standard or Expert generation, and GuruOwl shows a credit estimate before you confirm. It then reads the whole document and drafts atomic cards with tags and page references.

• •PDF to Anki Generation - Reads lecture slides, review guides and textbook chapters end to end and writes cloze-first and basic cards from the testable facts, rather than processing a few pasted paragraphs.
• •Source Traceability - Each card keeps a reference to the file and page number it came from, and that field survives the .apkg export, so you can check any answer against your PDF.
• •Image Occlusion on Expert - Expert mode finds labelled diagrams in the PDF, such as anatomy plates or schematics, and turns each into a masked image-occlusion card for active recall.
• •Inline Editing Before Export - Every card is a draft you can edit, merge or delete in a review step, and nothing enters your deck until you approve it.
• •Deck Styles - You can ask for new cards in the style of a deck you already trust, such as AnKing, MileDown or your own, including its cloze patterns, formatting and tags.

GuruOwl is built for students who already study with Anki and want to stop typing cards by hand. Its stated best-fit users are medical, MCAT, nursing, law, bar exam, language and lecture-note students, and the Expert mode with image occlusion and board-standard checks is clearly aimed at medical school content such as USMLE Step 1 material.