Paperpile authenticates securely with your Google Account. Our servers never access your password or store it anywhere.

It also connects to your Google Drive, but cannot access your personal data — only files you upload via Paperpile.

And of course, we won't share your e-mail address with anyone.

Read and annotate

Make the most out of your reading time. Insights built in.

Reading, understanding, and synthesizing academic literature is hard. It's your work — and you deserve the best tools to do it well.

Annotate your PDFs in Paperpile
PDF viewer

The closest thing to reading on paper

Paperpile's PDF viewer works right in your browser, or on your iPad or Android tablet.

Paperpile PDF viewer
Notes and annotations

Never forget an important idea

Insights come and go, your notes and highlights in Paperpile stay. Revisit them anytime without re-reading the whole paper.

Highlight key sections

Highlights

Highlight or underline the key sections of your papers.

Sticky notes on papers

Notes

Add notes to highlights or add standalone sticky notes.

Annotate figures and tables

Annotate figures and tables

Highlight and add notes to figures and tables — often where the key details are.

Annotation colors

Colors and keyboard shortcuts

Switch easily between colors. Use a single color or create a detailed color code to organize your information — it's up to you.

Light and dark themes

Day or night. It's up to you.

Switch to Paperpile's dark theme when your eyes are tired. Or simply because you like black.

Paperpile PDF reader in dark mode
Data export

Take your PDFs and notes wherever your work takes you

Never locked in. View and annotate with any PDF viewer, or move notes to your favorite note-taking app.

Export notes and PDFs

Markdown export

Export notes as Markdown to apps like Notion or Obsidian.

Save annotations directly in the PDF

Annotations are stored using the PDF ISO standard, so any compliant viewer can read them.

Sync files to your cloud provider

Access your PDFs on any device via Google Drive or OneDrive.

All your papers in one place. Nice and tidy.