# I/Riddle Registry 🕵️**The Challenge :** Here is an easy-level forensic problem: it involves a PDF file that contains a lot of non‑relevant text :+1: ![image](https://hackmd.io/_uploads/SyAC6vI0gl.png) Press enter or click to view image in full size **Solve** I see two hint is : “visible text just a decoy” and “look beyond a surface” , They remind me of Exiftool 🧠**Overview Exiftool** ExifTool is a free, open‑source command‑line utility for reading, writing, and editing metadata in a wide variety of file types ![image](https://hackmd.io/_uploads/BJAzRPURxe.png) Press enter or click to view image in full size Ohh , i seen base64 code “cGljb0NURntwdXp6bDNkX20zdGFkYXRhX2YwdW5kIV9jOTk5ZTJhNH0=” i decode to have flag ![image](https://hackmd.io/_uploads/Hk3bADLAxx.png) Press enter or click to view image in full size Flag : `picoCTF{puzzl3d_m3tadata_f0und!_c999e2a4}`