Annotate PDF documents for free, no registration required.

How to annotate a PDF document or fill in a PDF online

Take the following steps to annotate your PDF document on annotation.com:

Drop the PDF file you want to annotate here, or browse to select one.

Markup your PDF document using the extended editor: add text, icons, shapes or images. Blur text or images in the PDF and sign the PDF with your signature and/or initials.

Fill in a fillable PDF document: some PDF documents have predefined fields or a form that can be filled in, switch between filling in a PDF document or annotating a PDF document. When saving a PDF, the changes are merged into one document.

Download the annotated PDF to your PC, tablet or phone.

Files you select here are not sent to our server.

More information about the PDF Annotator

Annotate PDF

Select a PDF document you want to annotate and add text, images, icons, shapes and signatures. Save your file back to your own device.

Annotation tools

Use our PDF annotation tools like: free draw, erase, shape draw, icons, marker, text, speech bubble and notes. You can annotate with images you upload as well.

Simple to use

We make it very simple to annotate PDFs. Our tool works online on all devices and browsers and you do not need to install anything, just annotate your PDF online and for free.

Private and secure

This PDF annotation tool does not upload nor store your files on our server. All annotations are processed by your browser, making this the most private and secure PDF Annotation tool online.

Online and Free

This PDF Annotation tool requires no installation. The PDF Annotator is completely free to use and no account is required.

Fill in PDF

You can fill in fillable PDF documents. Choose between predefined values or type text in the text fields. You can switch between filling in a PDF or annotating a PDF.