Private browser tool
Edit PDF
Place one text note exactly where you want it on every page or one selected page.
Open Edit PDFWhat this tool accepts
.PDF input · .PDF output
Local safeguards
1 PDF file · 100 MB. 500 pages/file · 500 characters max in annotation text · 128 MB max result
Private and offline-capable
Processing happens in this browser. Files are not uploaded, and generated results remain in memory until downloaded or the tab is closed. After the first successful production load, the app shell and local processing engines can work offline.
Related tools
Free and open source
Inspect how Local File Studio processes your files, run your own copy, or help improve the tools. Application code is available under Apache License 2.0; bundled libraries and assets retain their own licenses.
View source on GitHub · Contribute · Apache 2.0 license · Third-party notices
Links open in a new tab. GitHub requires a connection; the license and notices are included in the offline app.