How to Add a Watermark to Photos
A watermark does three jobs at once: it brands your work, discourages casual theft, and carries your contact info wherever the image travels. The catch is consistency — stamping 200 product photos individually in an editor is miserable. Batch watermarking applies identical text, position, and styling to every file in one pass. Here's how to do it in Re-Sizefy, with everything processed locally in your browser.
Step-by-step watermarking
- Drop your photos in. Drag the full set into the tool — watermarking works on JPG, PNG, and WebP, and batch mode keeps the placement identical across all of them.
- Type your watermark text. A name, brand, handle, or copyright line like "© 2026 Studio Name" works best. Short beats long: it stays legible at small sizes and doesn't dominate the photo.
- Choose position. Pick a corner or edge placement. The bottom-right corner is the classic choice — visible but out of the way of the main subject. Centered watermarks are harder to remove but also harder on the viewer.
- Set color and size. White with partial transparency is the universal default because it reads on both dark and bright areas. Size the text relative to the image: aim for roughly 5–8% of the image width so it scales sensibly across a mixed batch.
- Preview on the extremes. Check the watermark against your brightest photo and your darkest one. If it vanishes on one, adjust the opacity or add a subtle dark outline rather than cranking up the size.
- Export the batch. Download as a ZIP with a renaming rule (e.g.,
-wm) so watermarked files stay separate from your clean masters.
Placement and style tips
- Keep it consistent. Same text, same position, same size across every image — consistency is what makes a watermark feel professional instead of improvised.
- Don't hide it in a flat corner. A watermark parked on a plain sky or solid wall can be cloned out in seconds. Overlapping a textured or detailed area makes removal far harder.
- Legible but quiet. The sweet spot is readable when someone looks for it, invisible when they're admiring the photo. Around 40–60% opacity usually lands there.
- One watermark per image. Tiling watermarks across the whole photo protects better but wrecks the viewing experience. Reserve tiled patterns for proof galleries, not portfolio or product shots.
What watermarks can't do
Be honest about the limits. A determined thief with an editor can remove or crop out almost any watermark, and AI inpainting has made this easier, not harder. Watermarks deter casual misuse and establish ownership for disputes — they don't make an image theft-proof. For real protection, keep high-resolution masters private and only publish web-sized versions.
Also remember the watermark is permanent: it's baked into the pixels. Always watermark copies, never your only originals. That way you can change the text, position, or branding later and re-export from the clean masters.
Try it now
Open the free Re-Sizefy watermark tool — drop your photos, set text, position, and style once, download the whole batch. No sign-up, nothing uploaded.