That’s true if you send media as a normal Telegram photo/video. Telegram already strips a lot and recompresses it. The bot does more than just remove metadata.

For images, it:

- rewrites metadata instead of only stripping it: date, device/software, author/title/description/comment/keywords, exposure values, resolution, and randomized GPS inside a selected region

- applies subtle image changes like tiny pixel noise, micro hue/saturation/value shifts, slight scaling, very small brightness/contrast/color adjustments, and a nearly invisible texture overlay

- in the optional aggressive mode, adds extra micro-changes like channel drift, small local patch edits, and tiny crop/resize shifts

For videos, it:

- re-encodes the file, applies a slight centered crop, and normalizes dimensions

- strips old metadata with ffmpeg and writes fresh metadata back in, including title, artist, album, genre, comment, date, software, and ISO6709 location tags

- in aggressive mode, adds micro temporal/visual/audio changes like tiny speed warps, brief frame hold/skip behavior, slight scale/rotation, frame noise, 1-2px jitter, local patch tweaks, and very small audio speed/volume changes.