aiPDF is an AI-powered document assistant that lets you upload any PDF, Word, PowerPoint, EPUB, or scanned document and chat with it in plain English. Behind the scenes it indexes every page into a vector database, so when you ask a question it surfaces the exact paragraphs it used to answer — with page-level citations you can click to jump to the source.
Used by researchers, lawyers, students and analysts, aiPDF handles files up to 2,000 pages, works in 95+ languages, summarizes, translates and extracts tables on demand, and is rated 4.7/5 on G2. A free plan lets you chat with documents up to 50 pages; paid plans start at $11.99/month for unlimited document length and priority GPT-4-class models.
Upload academic papers, contracts, textbooks or technical manuals up to 2,000 pages each. The chat interface returns answers grounded in the document with clickable page citations so you can verify every claim.
In addition to PDF, aiPDF accepts DOCX, PPTX, EPUB, RTF, TXT, Markdown and scanned images (with OCR). Mix and match file types in a single project folder.
Every answer shows the exact source pages in the sidebar. Click a citation and the PDF scrolls directly to the highlighted paragraph — no more guessing whether the AI hallucinated.
One-click summaries of any uploaded document. Choose length (short, medium, detailed), style (bullet points, executive summary, academic abstract) and language.
Ask questions in Spanish about a German paper, or summarize a Japanese manual in English. aiPDF handles cross-language queries natively using multilingual embedding models.
Pull structured tables out of PDFs into CSV, Markdown or Excel formats. Especially useful for financial reports, scientific papers and medical research.
Group multiple documents into folders and query them together — ideal for literature reviews, case research and multi-file comparisons. Answers cite the specific document and page.
Documents are stored in encrypted EU data centers; you can delete any file permanently with one click. Paid plans offer zero-retention mode for sensitive documents.
aiPDF is an AI-powered document assistant that lets you chat with, summarize, and extract insights from PDFs and other documents instantly.
Here are the standout features you get with aiPDF:
Four curated walkthroughs covering aiPDF chat, document summarization, feature walkthrough and competitor comparison.
aiPDF offers a free plan plus two paid tiers and an enterprise option, with yearly billing saving up to 30%. Prices below are from aiPDF’s official site.
The free plan needs no credit card to start, and annual billing lowers the effective monthly cost. Scanned or image-based PDFs rely on OCR, which is slower than text PDFs.
Below is a verified G2 review from an aiPDF user in the legal research field.
I deal with 500-page case bundles weekly and aiPDF has replaced 80% of the manual skimming. Drop the bundle in, ask “list all witness statements about the contract clause” and it returns citations I can verify in one click. Accuracy is far better than generic ChatGPT because it only answers from the uploaded document. Worth the $11.99 ten times over.
Closest alternatives are ChatPDF (simpler, PDF-only), Humata AI (research-focused with multi-doc querying), AskYourPDF (ChatGPT plugin + standalone), PDF.ai (similar features, smaller page cap), and NotebookLM by Google (free, multi-source, great for students). Pick aiPDF for the 2,000-page cap and page-level citations; pick NotebookLM if you need a completely free option.
Common questions answered before you sign up.
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