Add Watermark Online
Use add watermark for a focused file operation. It is free, requires no account, supports batches, and accepts server uploads up to 100 MB per file. The conversion runs on the server in an isolated request. Keep the original file while you review the converted copy.
Convert .IMAGE/* to .WATERMARKED
Select a file to begin. Processing details and limits are listed below.
How to use Add Watermark
- 1
Queue the source file
Drop the IMAGE/* file or files into the uploader. Keep the original until the result has been reviewed.
- 2
Set the operation details
Use the available options for add watermark, or keep the defaults for a standard run.
- 3
Process and download
Run the queue, inspect the watermarked image result, and download it individually or as a ZIP.
Tool specifications
| Operation | Add Watermark |
|---|---|
| Input | IMAGE/* |
| Output | WATERMARKED |
| Processing | Server-side |
| Maximum size | 100 MB per file on the server. |
| Batch support | Yes, multiple files can be queued; completed results can be downloaded as a ZIP. |
| Quality controls | No quality slider. The output follows the fixed conversion path. |
Why use Add Watermark?
- Use add watermark when the source file is already in a suitable format but needs a focused operation rather than a full format change.
- Batch processing helps when the same operation has to be repeated across a folder or a set of client files.
- The operation is useful when the desired change is smaller than a full format conversion.
- The queue makes it practical to handle several files with one consistent setting.
What changes?
Stamp text or logo watermarks. The operation changes the file according to the selected settings; review the result before replacing the source.
Processing and limits
- Processing
- Server-side
- Engine
- Sharp and ImageMagick
- Maximum size
- 100 MB per file on the server.
- Batch support
- Yes, multiple files can be queued; completed results can be downloaded as a ZIP.
- Quality controls
- No quality slider. The output follows the fixed conversion path.
The file is processed on the server because the conversion requires a server-side engine or a utility operation. The operation is selected by the tool and is not a generic pair conversion.
- Encrypted, damaged, or unusual IMAGE/* files may fail or need manual review.
- Some source features do not have a direct equivalent in the output.
- Keep a backup of the source until the result has been checked.
Platform compatibility
The operation runs in a browser and returns a downloadable file. Open it in an application that supports watermarked image, and keep the source for comparison.
When not to convert
- Do not convert when the original IMAGE/* must remain the only editable or archival copy.
- Skip the conversion when the destination already accepts IMAGE/* and no compatibility problem exists.
- For a one-off preview, a local viewer may be faster than creating a new delivery file.
Frequently asked questions
- How does Add Watermark work?
- Stamp text or logo watermarks. The tool produces a downloadable result and keeps the source file available for comparison.
- What does Add Watermark cost?
- It is free, requires no account, and adds no watermark. Server uploads are limited to 100 MB per file, and browser-first paths are limited by device memory.
- Will quality change?
- Stamp text or logo watermarks. The operation changes the file according to the selected settings; review the result before replacing the source.
- Where is the file processed?
- Yes. This conversion uses a server-side engine, so the file is uploaded over HTTPS, processed in an isolated request, and removed after the result is produced.
- How do I process a batch?
- Queue multiple files, run them together, and download the finished results as a ZIP. Each server file is limited to 100 MB, and large batches may take longer.
- What should I check before using the output?
- Open the downloaded watermarked image file in the application or database you plan to use, check the structure against the source, and keep the original until the output is approved.