There's no shortage of online PDF tools — but most of them hit you with a paywall after one use, slap a watermark on your file, or demand an email address just to get started. In 2025, you shouldn't have to deal with that. Here are the best genuinely free PDF tools available right now, all of which work without any signup.
1. Compress PDF — shrink files by up to 90%
The most commonly needed PDF tool. A good compressor should offer multiple quality levels and actually tell you how much smaller your file got. Our Compress PDF tool uses Ghostscript — the industry-standard engine — to intelligently reduce file size without degrading text. You pick the compression level (Screen, eBook, Printer, or Prepress) and get a result in seconds.
Best for: sending PDFs by email, uploading to portals with file size limits, reducing cloud storage.
Try it: tecpdf.com/compress
2. Merge PDF — combine multiple files into one
Got five separate PDFs that belong together? Merge PDF lets you drag in as many files as you want, reorder them by dragging, and combine them into a single clean document. No file count limits on the free plan.
Best for: combining scanned pages, assembling reports from multiple sources, creating a single portfolio document.
Try it: tecpdf.com/merge
3. Split PDF — extract exactly the pages you need
The opposite of merge. Split PDF lets you extract specific pages, define custom ranges, or split every page into its own file. You can also get a page count before splitting so you know exactly what you're working with.
Best for: extracting a single chapter from a long report, removing confidential pages before sharing, splitting a multi-section document.
Try it: tecpdf.com/split
4. AI PDF Summarizer — get the key points instantly
This is where things get genuinely useful. Upload any text-based PDF — a research paper, a contract, a financial report — and the AI reads the entire document and delivers a clear, structured summary. It identifies the main topics, key findings, and conclusions so you don't have to read every page.
Best for: students, researchers, professionals who deal with long documents daily.
Try it: tecpdf.com/summarize
5. Chat with PDF — ask your document questions
The most powerful tool in the set. Chat with PDF lets you have a real conversation with any document. Upload a PDF and ask it anything — 'What are the payment terms?', 'Summarise section 3', 'What risks does this contract mention?' The AI reads the full document and answers accurately based on the actual content.
Best for: legal documents, contracts, research papers, technical manuals — anywhere you need a specific answer fast.
Try it: tecpdf.com/chat
Honourable mentions
Beyond the five above, tecpdf.com also offers:
• Protect PDF — add a password to prevent unauthorised access
• JPG to PDF — combine multiple images into one PDF
• PDF to JPG — convert every page into a high-quality image
• Word to PDF and Excel to PDF — instant, accurate conversion
• AI PDF Translator — translate any PDF into 10 languages
What makes a good free PDF tool?
Three things: it works reliably, it doesn't store your files, and it doesn't demand payment after one use. All the tools above process files on secure servers and delete them immediately after download. No signup. No watermark. No catch.
All 11 tools are available free at tecpdf.com — no account required.