07 Download · Subtitle Removal · Watermark Removal
These are one-off tools that do not go through the full translation pipeline. The sidebar carries four entries: Video Download, Image Watermark Removal, Video Watermark Removal, Subtitle Removal. They share one interface: the left lists the tool projects you have created, you click New to pick material, and the right side is the workspace for the selected item. Results always land in the output folder of that tool project's directory, and every one of these pages has a button to open it. "Video Download" and "Subtitle Removal" are hidden by default; turn them on under Settings → Experimental Features.
1. Video Download
Its entry is hidden by default: go to Settings → Experimental Features and switch on "Video Download" — only then does this entry appear in the sidebar.
All four tools share one shell: click Create Project, give it a Project Name, and supply the material — a download project takes a Video URL, while a subtitle-removal or watermark-removal project takes a Source File (that is, the Video File Path). Every entry in the list can be renamed (its Project name).
A download goes down this path: click New to create a download project, paste the link into Source URL → click Parse (in the tool list this button is named Parse Video) → pick a quality from the Format dropdown → Start Download. Only the picture qualities the parse actually found are listed; anything the platform did not offer never shows up. When the download finishes, use Open Directory to get the file; each entry in the list also offers Open File, Redownload or Delete. That retry button is labelled Redownload on the download page but Retry Download in the project lists of the other tools — one action, two names.
The "Copy" button in a phone app usually hands you a whole block of share text with a link buried in it, not a clean URL. Paste the entire block straight into the input box — the program picks the link out itself, so there is nothing to trim by hand.
Which platforms really work
"The program recognizes this link" and "this video can be downloaded" are two different things; the second depends on whether the platform allows automated fetching. As of the last update of this manual:
| Platform | Status |
|---|---|
| YouTube | Can be downloaded |
| Bilibili | Can be downloaded |
| TikTok | Can be downloaded |
| Twitter / X | Can be downloaded |
| Can be downloaded; some videos need login info | |
| Douyin | Not available right now. Douyin refuses automated requests that do not carry its own site signature, so the program can recognize the link but cannot fetch the video info. This has nothing to do with your network or your account, and logging in again does not fix it. |
| Douyin image-text posts | Not supported (those are image-text pages, not video pages) |
| Other platforms | Depends on whether the site allows it; anything not listed here is not guaranteed |
What does work with Douyin: open the link in your browser, save the video from the page, then handle that local file with "New Project" → select the video file, or with the subtitle-removal / watermark-removal tools.
Login info and Cookies
Location: Settings → Video Download. Three sources:
- None: no login info is sent at all — the easiest choice for public videos.
- From Browser: reads cookies straight from the Chrome / Firefox / Safari / Edge / Opera / Brave on your computer. If the browser is running and the read fails, the program tells you to close the browser or to switch to one of the other two.
- From File: point to a cookies file you exported.
There is also Quick Login: the program embeds a browser window where you log in to TikTok / Instagram / Twitter / Facebook / Douyin, and it collects the credentials once you are in. Understand its role — it only prepares the login info; whether a download works is still the platform's call, so do not expect that "logged into Douyin" means "downloadable". Logging out deletes the saved credentials; cookie files you already exported are kept.
In network-restricted environments you can also fill in an HTTP or SOCKS proxy on the same page.
2. Subtitle Removal
This erases the hard subtitles already burned into the picture (removal, not generation). The entry in the sidebar is named "Subtitle Removal", and images and videos are both added through this one entry:
- Load material with Add Image / Add Video (you can add several items at once), then select the one to process in the list.
- In Detection Settings, drag the Threshold slider (range 0.05–0.5, default 0.2). The line on the screen is the trade-off itself: Lower = more sensitive, detects more text. Higher = stricter detection. When unsure, run once at the default.
- Click Start Processing; while it runs the button reads "Processing..." and a progress line below shows frames done / total.
- When it finishes, that button becomes Open Result, and a result preview appears above it (videos play right there).
Its entry is hidden by default: go to Settings → Experimental Features and switch on "Subtitle Removal" — only then does this entry appear in the sidebar.
The frame-by-frame repaint is computed over the picture regions, so for longer videos the time grows close to linearly. For material tens of minutes long, crop out a short test segment first.
3. Watermark Removal
Unlike subtitles, watermarks have no predictable shape, so this step needs you to point at the area: first load material with Add Image / Add Video (the Images / Videos tabs at the top keep the two kinds apart), then use the Brush to paint over station logos, corner marks and scrolling text on the picture. Painted wrong? Rub it off with the Eraser or step back one stroke with Undo; to start over, click Clear Mask. The more closely your strokes follow the edges, the more natural the repaint; leaving a little margin beats painting too small — anything you miss stays behind.
If you would rather not paint by hand, there are two shortcuts: Auto Detect lets the program find the watermark regions itself, and Select Region lets you frame a rectangle over them. After marking, click Show Mask to check exactly which pixels the program is about to change, then press Remove Watermark once you are sure. When the picture is too small to judge, click Fit to bring it back to the whole frame. When it is done, grab the result with Open Folder.