diff --git a/README.md b/README.md
index f0ebcda..3eda3c1 100644
--- a/README.md
+++ b/README.md
@@ -78,8 +78,10 @@ Your contributions and suggestions are heartily♥ welcome. (✿◕‿◕). Plea
 ## Anonymity Tools
 
 * [I2P](https://geti2p.net/) - The Invisible Internet Project.
+* [Metadata Anonymization Toolkit (MAT)](https://0xacab.org/jvoisin/mat2) - Metadata removal tool, supporting a wide range of commonly used file formats, written in Python3.
 * [Nipe](https://github.com/GouveaHeitor/nipe) - Script to redirect all traffic from the machine to the Tor network.
 * [OnionScan](https://onionscan.org/) - Tool for investigating the Dark Web by finding operational security issues introduced by Tor hidden service operators.
+* [Tails](https://tails.boum.org/) - Live operating system aiming to preserve your privacy and anonymity.
 * [Tor](https://www.torproject.org/) - Free software and onion routed overlay network that helps you defend against traffic analysis.
 * [What Every Browser Knows About You](http://webkay.robinlinus.com/) - Comprehensive detection page to test your own Web browser's configuration for privacy and identity leaks.
 * [dos-over-tor](https://github.com/skizap/dos-over-tor) - Proof of concept denial of service over Tor stress test tool.
@@ -271,8 +273,10 @@ See also [DEF CON Suggested Reading](https://www.defcon.org/html/links/book-list
 
 ## File Format Analysis Tools
 
+* [ExifTool](https://www.sno.phy.queensu.ca/~phil/exiftool/) - Platform-independent Perl library plus a command-line application for reading, writing and editing meta information in a wide variety of files.
 * [Hachoir](https://hachoir.readthedocs.io/) - Python library to view and edit a binary stream as tree of fields and tools for metadata extraction.
 * [Kaitai Struct](http://kaitai.io/) - File formats and network protocols dissection language and web IDE, generating parsers in C++, C#, Java, JavaScript, Perl, PHP, Python, Ruby.
+* [peepdf](https://eternal-todo.com/tools/peepdf-pdf-analysis-tool) - Python tool to explore PDF files in order to find out if the file can be harmful or not.
 * [Veles](https://codisec.com/veles/) - Binary data visualization and analysis tool.
 
 ## GNU/Linux Utilities