Yes — Perplexity AI can summarise PDFs, but this feature is only available on the Pro plan. If you are on the free tier, there are some workarounds worth knowing about. Here is exactly how the PDF feature works, what it can and cannot do, and how to get the most out of it.
How to Upload a PDF to Perplexity AI
- Go to perplexity.ai and make sure you are logged into a Pro account
- In the search bar, click the paperclip / attach icon
- Select your PDF file and upload it
- Type your question or request — for example: “Summarise this document”, “What are the key findings?”, or “What does this say about [specific topic]?”
- Perplexity will read the PDF and respond based on its contents
You can ask multiple follow-up questions about the same document without re-uploading it. The conversation retains context throughout the session.
What You Can Ask Perplexity to Do With a PDF
Beyond a basic summary, Perplexity can handle a range of document tasks:
- Summarise the whole document — get a concise overview of a long report or paper
- Extract key points — “List the main recommendations from this report”
- Find specific information — “What does this document say about data retention?”
- Explain complex sections — “Explain section 4.2 in plain English”
- Compare with other sources — if you have uploaded the PDF into a Space, you can ask Perplexity to compare it with web sources on the same topic
- Answer questions based on the content — treat it as a knowledgeable assistant that has read the document
File Size and Format Limits
Perplexity Pro supports PDF uploads alongside other file types including Word documents, text files, and images. File size limits apply — very large PDFs (hundreds of pages) may not be fully processed. For best results:
- Keep files under 50MB where possible
- For very long documents, ask specific questions rather than requesting a full summary — this produces more focused, useful responses
- Text-based PDFs work better than scanned image PDFs, which may not be fully readable
Using Spaces for Document Research
If you are working with multiple documents — for example, comparing several reports or research papers — Perplexity Spaces is the most efficient approach. Create a Space, upload all your documents, and ask questions that span across them: “Across all these reports, what are the common recommendations?” This is significantly faster than reading multiple documents manually.
What About the Free Plan?
Free Perplexity accounts have very limited or no file upload access. If you are on the free tier and need to work with PDF content, there are some alternatives:
- Copy and paste key sections — paste the text from a PDF directly into the Perplexity search bar and ask your question
- Use Claude.ai free tier — Claude’s free plan supports document uploads and is strong at summarisation
- Use ChatPDF — a free dedicated tool for asking questions about PDFs
How Accurate Is Perplexity at Summarising PDFs?
Perplexity handles straightforward summarisation well. For complex technical, legal, or scientific documents, the summary will capture the main points but may miss nuance. Always read the original for anything consequential — contracts, medical documents, legal agreements. Use Perplexity’s summary as a starting point to understand the structure and key themes, then read the sections that matter most to you in full.
Is It Worth Upgrading to Pro for PDF Support?
If document analysis is your main reason for wanting Pro, consider whether Claude Pro or ChatGPT Plus might be a better fit — both handle documents well and offer more capability for long-form document work. Perplexity Pro is best justified if you also use it heavily for research searches. If PDFs are your primary need, a dedicated document AI tool may serve you better.
