PDF Chat

Chat with any PDF using AI

Upload up to 16 PDFs at once and ask questions across all of them. Get instant summaries, find specific clauses, and extract the answers you need in seconds.

Download Free

Free to start. Mac, iPhone and iPad. Apple silicon.

How it works

Three steps to get answers from any PDF

Everything happens inside Fello AI — a free native app for Mac, iPhone, and iPad. No browser, no account required beyond the free download.

01
Upload your PDFs
Open Fello AI and drag and drop up to 16 files at once. Reports, papers, contracts, manuals — any PDF up to 20MB each.
02
View in the sidebar
Your documents appear in a side panel so you can read along as the AI references specific sections and page numbers.
03
Ask anything
Ask questions in plain language. Summarize, compare across documents, extract key figures, or translate entire sections.
Screenshot — drag & drop upload
Drop up to 16 PDFs at once
Mix document types freely — contracts, papers, reports. Files load instantly in the sidebar and stay available across the whole conversation.
Screenshot — AI answer with page references
Answers with exact page citations
Every answer links back to the source paragraph and page number so you can read the original context and catch any hallucinations before they matter.

Unlike browser-based PDF tools, Fello AI runs natively on your Mac, iPhone, and iPad, so uploads are fast, the interface stays responsive even with large files, and your documents never pass through a third-party web server. The AI model processes the content directly — you choose whether that's ChatGPT, Claude, or Gemini depending on what you need. Claude tends to be strongest for dense legal or technical reading; ChatGPT handles structured data extraction well; Gemini is a solid all-rounder with a large context window for very long documents.

Every answer comes back with the source page numbers highlighted in the sidebar, so you can read the original passage and verify the AI's interpretation before you act on it. That cited-source workflow is what separates AI PDF chat from a plain summariser — you stay in control of the document rather than trusting a black-box output.

PDF Tools

More than chat — full document control

Fello AI includes a full set of PDF manipulation tools so you can clean up, restructure, and export documents without leaving the app.

Screenshot — summary export view
AI Summary
Summarize and export as PDF
Ask the AI to summarize any document, then export the result as a clean, shareable PDF. Great for executive briefs, meeting recaps, and study notes.
Screenshot — split with cover pages
Split
Split into sections with cover pages
Divide a long document into individual chapter PDFs, each with its own auto-generated cover page. Perfect for distributing chapters or proposals to separate recipients.
Screenshot — image extraction view
Extract
Pull every image from a PDF
Automatically extract all photos, charts, diagrams, and graphics from any PDF as individual image files. Saves hours when working with visual-heavy reports or presentations.
Use cases

What people use PDF chat for

Research papers
Summarize findings, compare methodologies across studies, and extract citations without reading every page.
Legal documents
Find specific clauses, flag unusual terms, and get plain-English explanations of dense contract language.
Financial reports
Pull revenue figures, compare quarterly performance, and ask follow-up questions about the numbers you're looking at.
Study materials
Upload your lecture notes, textbooks, or course readings and quiz yourself or generate practice questions instantly.
Contracts
Compare two contract versions side-by-side, identify changes, and surface the clauses that matter most to you.
Technical manuals
Ask how to perform a specific task in plain language instead of hunting through hundreds of pages of documentation.
A note on document privacy
When you upload a PDF, the content is processed by third-party AI providers such as OpenAI, Anthropic, and Google. Your files are not stored on Fello AI's servers, but we recommend against uploading confidential, regulated, or sensitive personal information such as medical records, financial credentials, or documents covered by NDAs. Each AI provider has its own data retention policies.
Get started free

Stop reading. Start asking.

Upload your first PDF and get answers in under 30 seconds.

Fello AI running on Mac, iPad, and iPhone
Download on the App Store

4.7 rating·27,000+ reviews·Free to start

Free to start. $9.99/month or $79.99/year for unlimited. Mac, iPhone and iPad.