PDF-Annotationswerkzeug — Kostenlos Online
Text, Signaturen, Formen und Bilder zu jeder PDF-Seite hinzufügen.
Frequently Asked Questions
Are annotations embedded in the PDF or just an overlay?
Annotations are embedded as standard PDF annotation objects, compatible with Adobe Acrobat Reader, Preview (Mac), and all major PDF viewers. Recipients see your annotations when opening the file.
Can I add comments that other people can reply to?
Yes. Comment annotations appear as note icons on the page. Click to open the comment text. Most PDF viewers show comments in a side panel and allow replies, though the reply thread is typically managed by the viewer application.
Can I annotate a password-protected PDF?
Only if you have the password. Enter the PDF password when prompted to unlock it for annotation. The annotated output will retain the same password protection.
Are my PDF files sent to a server?
The annotator uses PDF.js and pdf-lib to render and annotate PDFs entirely in the browser. For files under 20 MB, no data is sent to any server. Larger files may use temporary server-side rendering.
Can I delete annotations after adding them?
Yes. Click any annotation to select it, then press Delete or click the trash icon to remove it. Undo (Ctrl+Z) also reverses the last annotation action.
Is the PDF-Annotationswerkzeug free to use?
Yes, the PDF-Annotationswerkzeug on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the PDF-Annotationswerkzeug work?
Text, Signaturen, Formen und Bilder zu jeder PDF-Seite hinzufügen. No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the PDF-Annotationswerkzeug?
No installation needed. The PDF-Annotationswerkzeug runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the PDF-Annotationswerkzeug?
Completely safe. The PDF-Annotationswerkzeug processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the PDF-Annotationswerkzeug work offline?
After the page loads for the first time, the PDF-Annotationswerkzeug works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.
Can I use the PDF-Annotationswerkzeug on my phone or tablet?
Yes. The PDF-Annotationswerkzeug is fully responsive and works on all modern smartphones and tablets. No app download is required — open your mobile browser, navigate to the tool, and use it exactly as you would on a desktop.
How do I share the PDF-Annotationswerkzeug results?
Copy the result text or take a screenshot to share via message, email, or social media. The tool URL can also be bookmarked and shared directly — the PDF-Annotationswerkzeug works for anyone with a modern browser, no account required.
Does the PDF-Annotationswerkzeug work on all browsers?
Yes. The PDF-Annotationswerkzeug is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.
How do I save or export my results from the PDF-Annotationswerkzeug?
Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.