AI PDF Summarizer by PDF Guru vs Stenography

PDF Guru's AI PDF Summarizer turns long PDFs and other documents into short summaries you can read in seconds. Upload a file up to 100 MB, wait a few seconds, and get key points laid out in bullets. After that, you can chat with the document to translate, simplify, rephrase, or pull out specific details.

Most general chat tools make you write prompts and juggle file limits. PDF Guru takes a different path: one click produces a structured summary, then you pick from Claude, GPT, or Gemini models in the same chat. It also accepts 14 formats including Word, PowerPoint, images, and e-books, and reads scanned pages through built-in OCR. The summarizer sits inside a broader PDF toolkit, so you can convert, compress, edit, or sign files without switching sites.

Students use it to condense textbook chapters before exams. Researchers skim papers for methods and conclusions. Lawyers and business owners turn dense contracts and reports into plain language they can act on. The first summary and three chat questions are free; ongoing use requires a PDF Guru subscription.

Stenography turns source code into plain-English summaries and keeps those explanations updated as you edit. Its VS Code extension runs Autopilot on every save to document entire codebases, while a separate API accepts code snippets and returns customizable explanations you can embed in your own apps or extensions.

Where generic AI chat tools treat code like any other text prompt, Stenography layers Stack Overflow suggestions and linked documentation into each response so answers cite real references instead of guessing. A passthrough API design means your code is not stored on Stenography servers, which matters when you are documenting proprietary repositories.

Developers who maintain large codebases, extension authors, and teams that want living docs without manual README upkeep are the main audience. The free tier covers 250 API calls per month, and paid plans scale invocation limits for heavier use.