Free PDF Tools Online – Compress, Merge, Split, Convert & More

Managing PDF files doesn’t need to be complicated. At tri.tools, we offer a complete set of free PDF tools online to make your workflow faster and easier. Whether you need to compress a large file, merge multiple documents, split pages, or add security, our tools are designed to be quick, reliable, and completely free to use.

Our Free PDF Tools at tri.tools

* Compress PDF

Reduce the size of your PDF without compromising quality. Choose from different compression presets to balance clarity and file size — perfect for emailing or uploading.

* Merge PDFs

Combine multiple PDF files into a single document. Simple, efficient, and ideal for keeping reports, invoices, or study materials together.

* Split PDF

Extract specific page ranges from your PDF. Great for isolating chapters, sections, or just the pages you actually need.

* Watermark Text

Add custom text watermarks to every page of your PDF. Adjust angle, size, and opacity to protect your documents from unauthorized use.

* Watermark PDF (Image or PDF Stamp)

Overlay an image or the first page of another PDF as a watermark. A professional way to add branding, logos, or stamps to official files.

* Convert to DOCX

Turn text-based PDFs into fully editable Word documents. Our tool supports OCR, meaning even scanned documents can be converted into editable text.

* Set Password

Secure sensitive information by protecting your PDFs with a password. Add either user or owner passwords to control access and editing rights.

* Remove Password

Unlock and regain full access to password-protected PDFs — as long as you know the correct password. A simple way to work with secured files again.

* Rotate PDF

Rotate all pages, or just a selected page range, by 90°, 180°, or 270°. Perfect for fixing scanned documents or adjusting orientation.

Why Use tri.tools for PDF Files?

Completely Free: No sign-up, no hidden fees.
Fast & Simple: Upload your file, choose your action, and download the result in seconds.
Browser-Based: Works online from any device — no software installation needed.
Powered by Innovation: All tools are part of the tri.tools platform, built by the Reptri AI Lab in Australia.

The Last Word

Whether you’re a student, freelancer, or business professional, tri.tools makes PDF management effortless. From compressing and merging to adding watermarks or securing files, our free PDF tools online are here to help you work smarter, not harder.

👉 Try Free PDF Tools at tri.tools