The short answer
Why use Add Stroke?
Simple overlays and markups should not require a large design application. The browser preview lets you place the element, flatten a copy, and move on.
Add Stroke focuses on adding stroke with control over its placement and appearance. Composition tools draw text, shapes, or additional images onto a canvas. Downloading flattens the layers, so the exported file behaves like a normal image.
The selected file stays in this browser tab and is released when you leave the page. Zoom in on text and thin lines before export. The downloaded image is flattened, so keep the source files if you may need to edit it again.
What Add Stroke does
Open the source photo
Drop, choose, or paste a supported file into Add Stroke. Adding stroke with control over its placement and appearance. The source stays on your device; we work on a copy.
Place the extra layer
Add Stroke is for adding stroke with control over its placement and appearance. The preview is the place to decide if the setting went too far. The original file is not overwritten.
Useful controls
Main controls: Text, color, size, position, opacity, or layout, depending on the tool. Working limit: 50 MB and 50 megapixels per image; multi-image jobs also depend on available memory. Watch the preview at full size before you save. A current desktop browser usually has more memory than a phone.
Download a flattened copy
Export is a flattened png or a zip when the job creates several files. The download is a new file. Keep the original until you have opened the copy once.
Where Add Stroke fits
These are ordinary jobs where the focused controls save time. They also show where a full editor or a manual review may still be the better choice.
Review notes
Point to a problem area with a border, arrow, label, or highlight.
Ownership marks
Add a restrained logo, timestamp, or watermark to a sharing copy.
Quick layouts
Finish a small Add Stroke job without building a layered project file.
Start to finish
How to use Add Stroke
- 01Choose, drop, or paste a supported file.
- 02Adjust the add stroke controls and check the preview at full size.
- 03Download the finished copy and open it once before using it elsewhere.
What to expect from Add Stroke
This table covers the parts that matter before you begin: what goes in, which controls do the work, what comes out, and where the browser draws a hard line.
| Check | What it means here |
|---|---|
| Supported input | JPEG, PNG, WebP, GIF, BMP, SVG and browser-supported AVIF images |
| Main controls | Text, color, size, position, opacity, or layout, depending on the tool |
| Output | A flattened PNG or a ZIP when the job creates several files |
| Working limit | 50 MB and 50 megapixels per image; multi-image jobs also depend on available memory |
| Privacy | Files and entered values stay in this tab. Filenames, pixels, metadata, OCR text, QR contents, locations, and passwords are not sent to analytics. |
Before you export
- Keep important marks inside a safe margin.
- Choose a color that stays visible over both bright and dark areas.
- Use the smallest readable text size at the final display scale.
- Save source images separately because the export is flattened.
Frequently asked questions
If you cannot find what you are looking for, write us a message and we will get back to you.
What should I check before saving with Add Stroke?
Does my file get uploaded?
Can I use Add Stroke on a phone?
Will Add Stroke overwrite my original file?
Why might the Add Stroke result look different in another app?
Is Add Stroke free to use?
How does Add Stroke work?
What can I put into Add Stroke?
How do I save the result from Add Stroke?
Why did Add Stroke fail or look wrong?
Will Add Stroke keep a copy of my work?
Related tools
More in Add Elements.
Continue the workflow
These tools handle common next steps after add stroke.