Edit text in place, sign, redact, reorganize. True content-stream rewrite, not stamp-on-top.
LaunchEdit, sign, redact, and reorganize PDF files in your browser. The Adobe Acrobat alternative that runs on your device — no upload, no subscription.
Pixel-perfect PDF diff with word-level text view, metadata + form-field compare, ruler, and exclusion zones.
LaunchSide-by-side or overlay PDF diff. Highlights pixel-level differences plus a word-level text diff in a modal.
Open any PCB Gerber bundle in your browser. Gerber X2, Excellon, layer compare, snap-to-pad measure, snapshot URLs.
LaunchOpen RS-274X / X2 Gerber and Excellon files. Inspect layers, measure traces, export to PNG / SVG / DXF.
Compress, merge, split, convert, and manipulate PDF files.
Resize, compress, convert, and transform images.
Format, encode, decode, and validate code and data — safe for production secrets.
Convert between video formats, compress, and strip audio — all in your browser.
Sourdough baker math, canning processing times — kitchen math you should not memorize.
AES-256 file encryption and self-destructing encrypted notes.
Open CAD, BIM, medical, and enterprise files without paying $300-30K/year for the native software. Gerber Viewer ships first.
Add text or image watermarks to PDF pages. Customize opacity, position, rotation, and size.
Drop a PDF here or click to browse — up to 100 MB
Yes. After uploading, use the page picker to choose "all pages", "first page only", "last page only", or a custom range like "2-5, 10". Each selected page gets the same watermark.
Both are supported. Use "overlay" (default) for a visible stamp that sits on top of the page content, or "background" to place it behind so text reads cleanly over it. Overlay with low opacity (20-40%) is the most common choice for "DRAFT" or "CONFIDENTIAL" stamps.
Yes. PNG transparency is preserved. For logo watermarks, a transparent-background PNG at 30-50% opacity is the standard pattern. The opacity slider multiplies the image's own alpha channel.
