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To secure your PDF documents from unauthorized access like copying or printing, you should password protect your file! Protect PDF files by adding a password and encrypt it.

An APA citation generator is a software tool that will automatically format academic citations in the American Psychological Association (APA) style.

Google Scholar provides a simple way to broadly search for scholarly literature. Search across a wide variety of disciplines and sources

Connected Papers is a visual tool to help researchers and applied scientists find academic papers relevant to their field of work.

Academia.edu is a place to share and follow research.

We are committed to providing a simple, efficient and easy all-platform mind map management tool to help you clarify your thoughts and capture inspiration and creativity.

A new generation of free collaborative mind mapping software for brainstorming and idea co-creation, stimulating the flow of ideas and allowing wisdom to spring forth organically

Photopea Online Photo Editor lets you edit photos, apply effects, filters, add text, crop or resize pictures.

Link Lock is a tool for adding a password to a link; in other words, for encrypting and decrypting URLs. When a user visits an encrypted URL, they will be prompted for a password.

Reduce file size while optimizing for maximal PDF quality.

This tool flattens PDF files quickly combine all layers and components in a PDF file into a single layer for free.

Al Tools Collection focuses on collecting and recommending popular, creative, interesting, and cutting-edge Al tools and websites at home and abroad, and is committed to providing everyone with a portal and entry to quickly access any Al website.