Output Formats
BatchWatermark Image can output in four formats. Here’s how to choose.
Same as Input (default)
Keeps each image in its original format. A JPG stays JPG, a PNG stays PNG, a WebP stays WebP.
Use this when: You don’t need to change formats — you just want to apply the watermark and move on. It’s the simplest option and avoids any unnecessary re-encoding.
JPG
JPEG compression — high quality (92%) with a small lossy artifact.
Pros:
- Smallest file sizes
- Universal compatibility — every app, website, and print lab accepts JPG
- Ideal for photographs (continuous-tone images without hard edges or text)
Cons:
- Lossy — each save introduces a small amount of compression artifact
- No transparency support
Use JPG when: You’re sharing photos online, sending to a print lab, or need the smallest files. The 92% quality setting used by BatchWatermark Image is above the threshold where artifacts are visible under normal viewing.
PNG
Lossless compression — no quality loss, larger files.
Pros:
- No compression artifacts — pixel-perfect output
- Supports transparency (alpha channel)
- Ideal for graphics, illustrations, logos, images with text overlays
Cons:
- Larger file sizes than JPG (often 3–5× bigger for photographic content)
Use PNG when: Your images have hard edges, logos, or transparency — or when you want an archival copy with zero quality degradation.
WebP
A modern format from Google — smaller than JPG at equivalent quality.
Pros:
- Excellent compression — smaller than JPG at similar quality
- Supports transparency
- Good for web distribution
Cons:
- Not universally supported — some older software, print labs, and stock platforms don’t accept WebP
- Not the standard format for traditional photo workflows
Use WebP when: You’re preparing watermarked images for web publishing and you know your platform supports it.
Format comparison at a glance
| Same as Input | JPG | PNG | WebP | |
|---|---|---|---|---|
| Compression | Original | Lossy | Lossless | Lossy |
| Transparency | Original | No | Yes | Yes |
| File size | Original | Small | Large | Smallest |
| Compatibility | Original | Universal | Good | Limited |
| Best for | General use | Photos, sharing | Graphics, logos | Web |
A note on TIFF
BatchWatermark Image reads TIFF files as input but does not output TIFF. If your workflow requires TIFF output, export as PNG (lossless, same quality) and convert using a free tool like IrfanView or GIMP.