Free · PDF + Images · Client-side
Add a watermark before you send the document.
Protect IDs, contracts, reports, and sensitive files with repeated text or logo watermarks. Files stay in your browser and the result downloads instantly.
Watermark
Color
Watermark workspace
Protect documents before you send them
Files stay in your browser.
Drop files here
PDF, JPG, PNG, or WebP. Up to 20 files and 45 MB per file.
Upload a file to preview the watermark
Advanced
Practical protection
Built for the files people share every day
IDs and certificates
Mark scans before sending them to hotels, rentals, schools, or onboarding forms.
Contracts and drafts
Stamp drafts with purpose, recipient, date, or “not for signature” before review.
Reports and evidence
Add context to PDFs and image files before forwarding sensitive material.
Need to review changes too?
Compare first, watermark before sending.
Differino also compares PDFs, Word documents, and text files side by side, then lets you export or share the results.
Compare documents