Video Logo Watermark

Overview

Add a logo watermark (from D:\logo\logo_black_text.png) to mp4 videos placed in

D:\workspace\. After processing, source videos are moved to

D:\workspace\完成\源文件\ and watermarked videos to D:\workspace\完成\增加logo\.

Workflow

Step 1: Discover new videos

List mp4 files in D:\workspace\ root that do NOT already have _with_logo in

their name:

Get-ChildItem -Path D:\workspace -Filter *.mp4 -File |
  Where-Object { $_.BaseName -notmatch "_with_logo$" } |
  Select-Object Name, @{N="SizeMB";E={[math]::Round($_.Length/1MB,1)}}

Step 2: Update the script

The processing script is scripts/add_logo.py. Copy it to D:\workspace\add_logo.py

before running. Modify the tasks list at the top of the script with the discovered

filenames:

tasks = [
    ("filename1.mp4", 0.25, "bottom-center"),
    ("filename2.mp4", 0.25, "bottom-center"),
]

Each task tuple: (filename, logo_width_ratio, position).

Position options:

• "bottom-center" — centered at bottom, 20px margin from edge
• "bottom-right" — bottom-right corner, 20px margin
• (x, y) — custom pixel coordinates

Step 3: Run the script

& "C:\Users\Administrator\.workbuddy\binaries\python\envs\default\Scripts\python.exe" D:\workspace\add_logo.py

The script:

1. Reads each video, overlays the logo
2. Writes output as {name}_with_logo.mp4
3. Auto-archives: source → 完成\源文件\, output → 完成\增加logo\
4. Skips files that already have a _with_logo output

Step 4: Deliver results

After processing, deliver the watermarked video(s) from

D:\workspace\完成\增加logo\ using deliver_attachments.

Environment

• Python: C:\Users\Administrator\.workbuddy\binaries\python\envs\default\
• Dependencies: moviepy, Pillow (already installed)
• Logo file: D:\logo\logo_black_text.png
• Script: scripts/add_logo.py (copy to D:\workspace\add_logo.py before running)

Default Parameters

| Parameter | Default | Notes |

|-----------|---------|-------|

| Position | bottom-center | Also supports bottom-right, custom (x,y) |

| Logo width | 25% of video width | Range typically 15%-50% |

| Margin | 20px | From edge of video |

| Archive source | D:\workspace\完成\源文件\ | Auto-created if missing |

| Archive output | D:\workspace\完成\增加logo\ | Auto-created if missing |

Notes

• The script uses moviepy with libx264/aac codecs for broad compatibility
• Warning about last-frame bytes missing is benign — moviepy fills with last valid frame
• If a video already has a _with_logo counterpart, it is skipped
• Update working memory (YYYY-MM-DD.md and MEMORY.md) after each batch