# Annotate PDF for startups

_Updated July 2026 · Arthize · https://arthize.com/for/startups/annotate-pdf_

Arthize lets startup founders and teams annotate a PDF in a private workspace — free, with no watermark. Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text.

## Why startups annotate a PDF

A founder exports the pitch deck to PDF, merges it with financials into a data-room file, and sends a SAFE for e-signature — without paying for enterprise document software.

**Built for pitch decks.** Whether it's pitch decks, cap tables, contracts, Arthize's annotate pdf keeps the work inside your private workspace. Fundraising materials and cap tables are highly confidential; private processing is critical.

## What matters when you annotate a PDF

Annotations sit on top of the page and don't change the underlying text.

You can highlight, comment, draw and add notes.

Annotated files are ideal for review and feedback.

## How to annotate a PDF

1. **Open the editor** — Sign in and open the PDF editor.
2. **Add your PDF** — Upload the document to mark up.
3. **Add annotations** — Highlight text, add comments, draw shapes or leave notes.
4. **Download** — Save the annotated PDF.

## FAQ

### How do startups annotate a PDF for free?

Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text. On Arthize it's free with no watermark, and the file is deleted after the job — which is why startup founders and teams can use it for pitch decks without a confidentiality risk.

### Is it private to annotate a PDF sensitive pitch decks?

Yes. Fundraising materials and cap tables are highly confidential; private processing is critical. Files are processed inside your private Arthize workspace and deleted after the job.

### How do I annotate a PDF?

Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text. On Arthize it's free with no watermark and processed privately.

### Can I highlight and comment on a PDF?

Annotating a PDF adds highlights, comments, shapes and notes on top of the page, so you can mark up a document without changing its text. On Arthize it's free with no watermark and processed privately.