--- title: "How to add a best seller badge with Claude (tested prompt and script)" description: "A gold laurel-wreath medal reading \"Best Seller\" drops in from above, swings round to a slight tilt with a small bounce and settles to the left of the bottle's neck. Install one skill and ask Claude Code, or run the Python script we tested yourself." url: https://www.recharm.com/effects/best-seller-badge --- # How to add a best seller badge with Claude A gold laurel-wreath medal reading "Best Seller" drops in from above, swings round to a slight tilt with a small bounce and settles to the left of the bottle's neck. Made by the script on this page, from our own test clip. ## Get this effect 1. ### Switch to Code in your [Claude Desktop App](https://claude.com/download) 2. ### Install the skill (once) ``` Install the Recharm video effects skill: download https://recharm-growth-staging.s3.us-east-2.amazonaws.com/website/downloads/recharm-video-effects.zip and unzip it into ~/.claude/skills ``` 3. ### Ask for the effect ``` Add a best seller badge to input.mp4 Top line, bottom line: BEST, SELLER ``` ## Several videos, several effects, one ask Put your clips in the folder, mention them with @, and ask for everything at once. Claude runs one tested script after another on each clip, then joins them. Add a best seller badge to **@clip1.mp4**, put a sale badge on **@clip2.mp4**, give **@clip3.mp4** a VHS look, then join all three with crossfades. ## Settings you can change Ask Claude to change any of these, or edit them at the top of the script. | Setting | Default | What it does | | ----------------------- | ---------------- | --------------------------------------------- | | `TOP_LINE, BOTTOM_LINE` | `BEST, SELLER` | The two lines on the medal. | | `START` | `0.6` | Second the badge starts to drop in. | | `SETTLE` | `0.6` | Seconds it takes to land and settle. | | `SIZE` | `0.36` | Badge width as a share of the frame width. | | `X, Y` | `0.19, 0.36` | Where the badge settles, 0-1 across and down. | | `GOLD` | `(240, 190, 50)` | Wreath, rim and lettering color. | | `NAVY` | `(25, 35, 75)` | Medal center color. | | `TILT` | `-8` | Degrees it rests at. | ## Without the skill Don’t want to install the skill? Paste this prompt into Claude Code and Claude writes the script itself. ``` Add a best seller badge to input.mp4. Draw it with Python and Pillow (don't use ffmpeg's drawtext filter), at 3x size and scaled down for smooth edges, 36% of the frame width across: a gold (240, 190, 50) disc 60% of the badge across with a navy (25, 35, 75) center 53% across and a thin gold ring inside it; "BEST" in bold gold letters 12.5% of the badge tall with "SELLER" 7.5% tall under it and three small gold stars above; around the disc a gold laurel wreath, two branches of 10 pairs of pointed leaves on a thin stem rising from the bottom and nearly meeting at the top. At 0.6 seconds it fades in over 0.24 seconds while dropping from a quarter of the frame height above its spot, shrinking from 1.5x and turning from 22 to -8 degrees (clockwise tilt) over 0.6 seconds with a slight overshoot, then it stays still, centered at 19% across and 36% down, beside the bottle. Keep the audio and save it as output.mp4. ``` ## Run it without Claude This is the exact script we tested. Save it as `best-seller-badge.py` and run: ``` python3 best-seller-badge.py input.mp4 output.mp4 ``` ``` #!/usr/bin/env python3 """Best seller badge: a gold laurel-wreath medal reading "BEST SELLER" drops in and settles beside the product. Usage: python3 best-seller-badge.py input.mp4 output.mp4 Needs ffmpeg and Pillow (pip install pillow). """ import json import math import subprocess import sys from pathlib import Path from PIL import Image, ImageDraw, ImageFont TOP_LINE, BOTTOM_LINE = "BEST", "SELLER" START = 0.6 # second the badge starts to drop in SETTLE = 0.6 # seconds it takes to land and settle SIZE = 0.36 # badge width as a share of the frame width X, Y = 0.19, 0.36 # where the badge settles (0-1 across and down the frame) GOLD = (240, 190, 50) # wreath, rim and lettering color NAVY = (25, 35, 75) # medal center color TILT = -8 # degrees it rests at FONTS = ["/System/Library/Fonts/Supplemental/Arial Bold.ttf", # macOS "/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", # Linux "C:/Windows/Fonts/arialbd.ttf"] # Windows FONT_FILE = next((f for f in FONTS if Path(f).exists()), None) or sys.exit("No bold font found: add one to FONTS") def leaf(draw, cx, cy, angle, length, width, color): """A pointed leaf centered on (cx, cy), its long axis along angle (radians).""" ux, uy, vx, vy = math.cos(angle), math.sin(angle), -math.sin(angle), math.cos(angle) along = [i / 6 - 1 for i in range(13)] # tip to tip, -1 .. 1 outline = [(s, 1) for s in along] + [(s, -1) for s in reversed(along)] draw.polygon([(cx + ux * s * length / 2 + vx * side * width / 2 * math.sqrt(1 - s * s), cy + uy * s * length / 2 + vy * side * width / 2 * math.sqrt(1 - s * s)) for s, side in outline], fill=color) def badge(): """The medal, drawn at 3x and scaled down for smooth edges.""" d = round(w * SIZE) * 3 img = Image.new("RGBA", (d, d)) draw = ImageDraw.Draw(img) c, r = d / 2, d * 0.37 # center, and radius of the wreath's stems draw.arc([c - r, c - r, c + r, c + r], 100, 240, fill=GOLD, width=d // 90) draw.arc([c - r, c - r, c + r, c + r], -60, 80, fill=GOLD, width=d // 90) for side in (-1, 1): # two laurel branches rising from the bottom for k in range(10): a = math.radians(90 - side * (12 + k * 14)) # round the side towards the top px, py = c + r * math.cos(a), c + r * math.sin(a) rising = a - side * math.pi / 2 # the stem's direction, heading up for lean in (-1, 1): # a leaf to the outside and to the inside angle = rising + side * lean * 0.55 length = d * (0.115 - k * 0.003) leaf(draw, px + math.cos(angle) * length / 2, py + math.sin(angle) * length / 2, angle, length, d * 0.045, GOLD) draw.ellipse([d * 0.20, d * 0.20, d * 0.80, d * 0.80], fill=GOLD) draw.ellipse([d * 0.235, d * 0.235, d * 0.765, d * 0.765], fill=NAVY) draw.ellipse([d * 0.26, d * 0.26, d * 0.74, d * 0.74], outline=GOLD, width=d // 120) draw.text((c, d * 0.45), TOP_LINE, font=ImageFont.truetype(FONT_FILE, round(d * 0.125)), anchor="mm", fill=GOLD) draw.text((c, d * 0.575), BOTTOM_LINE, font=ImageFont.truetype(FONT_FILE, round(d * 0.075)), anchor="mm", fill=GOLD) for i in (-1, 0, 1): # three small stars above the words star(draw, c + i * d * 0.06, d * 0.345 - (i == 0) * d * 0.01, d * 0.023, GOLD) return img.resize((d // 3, d // 3), Image.LANCZOS) def star(draw, cx, cy, r, color): pts = [(cx + (r if i % 2 == 0 else r * 0.42) * math.sin(i * math.pi / 5), cy - (r if i % 2 == 0 else r * 0.42) * math.cos(i * math.pi / 5)) for i in range(10)] draw.polygon(pts, fill=color) def overlay(t): """The badge drops from above, shrinking from 1.5x and turning to TILT, with a small bounce as it lands.""" img = Image.new("RGBA", (w, h)) if t < START: return img p = ease_out_back((t - START) / SETTLE) scale = 1.5 - 0.5 * p b = full.resize((round(full.width * scale), round(full.height * scale)), Image.LANCZOS) b = b.rotate(TILT + 30 * (1 - p), resample=Image.BICUBIC, expand=True) alpha = min(1, (t - START) / (SETTLE * 0.4)) b.putalpha(b.getchannel("A").point(lambda a: round(a * alpha))) img.alpha_composite(b, (round(w * X - b.width / 2), round(h * Y - h * 0.25 * (1 - p) - b.height / 2))) return img def ease_out_back(p): """0 -> 1 with a small overshoot past 1 before settling.""" p = min(max(p, 0), 1) return 1 + 2.70158 * (p - 1) ** 3 + 1.70158 * (p - 1) ** 2 def probe(path): info = json.loads(subprocess.check_output(["ffprobe", "-v", "error", "-select_streams", "v:0", "-show_entries", "stream=width,height,r_frame_rate:format=duration", "-of", "json", path])) s = info["streams"][0] num, den = s["r_frame_rate"].split("/") return s["width"], s["height"], s["r_frame_rate"], float(num) / float(den), float(info["format"]["duration"]) def render(src, out): """Draw overlay(t) on every frame of src and save to out, keeping the audio.""" ff = subprocess.Popen(["ffmpeg", "-y", "-v", "error", "-i", src, "-f", "rawvideo", "-pix_fmt", "rgba", "-s", f"{w}x{h}", "-r", rate, "-i", "-", "-filter_complex", "[0:v][1:v]overlay=shortest=1,format=yuv420p[v]", "-map", "[v]", "-map", "0:a?", "-c:v", "libx264", "-crf", "18", "-c:a", "copy", out], stdin=subprocess.PIPE) for i in range(math.ceil(duration * fps)): ff.stdin.write(overlay(i / fps).tobytes()) ff.stdin.close() if ff.wait(): sys.exit("ffmpeg failed") src, out = sys.argv[1:3] w, h, rate, fps, duration = probe(src) full = badge() render(src, out) ``` ## More product shots - [Animated feature callouts **Animated feature callouts**](https://www.recharm.com/effects/animated-feature-callouts) - [Before/after slider **Before/after slider**](https://www.recharm.com/effects/before-after-slider) - [Callout arrows and circles **Callout arrows and circles**](https://www.recharm.com/effects/callout-arrows-and-circles) - [Carousel swipe **Carousel swipe**](https://www.recharm.com/effects/carousel-swipe) - [Comparison table **Comparison table**](https://www.recharm.com/effects/comparison-table) ## Find 3x _winning ads_ Recharm cuts your ad footage into tagged, searchable clips: hooks, testimonials, product shots. Find the shots that win, add the effect with Claude, and ship 3x more ad edits. [Start 14-day free trial](https://www.recharm.com/get-started)