4:10 PM. Student sends a photo from the textbook. Tutoring starts in 5 minutes.

Online whiteboard with PDF

You paste a PDF or task photo onto the board. You solve next to it, mark errors, write comments. The student sees everything in one window — not in three browser tabs.

Open board with PDF See how it works

PDF pasted on Lucyboard whiteboard with notes and error marks.

You paste the PDF. You solve beside it.Notes in the margin The board stays. The student comes back.

PDF with a task next to a handwritten solution on the board.

You paste the PDF. You solve beside it.

The student sends a photo of a task or a PDF from the textbook. You paste it on the board — not in the chat, not in a separate file. Next to it you draw the solution, write the steps, mark where they made a mistake.

No need to open a separate PDF viewer. No need to ask the student to share their screen. Everything is on one board that you both see at the same time.

Notes and arrows in the margin of a PDF on the board.

Notes in the margin

You mark the error with a red arrow. You write 'missing minus sign here' next to the line where the student got the sign wrong. You draw a table with two ways to solve it.

This isn't annotating a PDF in a separate app. This is drawing on the same board where the PDF sits. The student sees your comments in the context of the task — not as a separate document to read after the lesson.

Board with PDF and notes as a review resource.

The board stays. The student comes back.

You end the lesson. The board with the PDF, the solution, and the notes stays. The student can come back to it in a week when reviewing for a test.

Nothing to export. Nothing to search for in the chat. The board link is the review link — same PDF, same notes, same context.

“A PDF in chat is an archive. A PDF on the board is a lesson.”

Paste your first PDF on a board

Create an account, paste a PDF or task photo, and start working with the student on one board.

Open board with PDF See other uses

Frequently asked questions

Yes. Drag a PDF file or paste a photo. The PDF appears on the board as an image that you can move, resize, and draw beside.

The student can draw and write on the board, but they can't change the original PDF. You can set permissions so only you have full editing rights.

Yes. A photo from your phone, a scan, a screenshot — paste it as an image on the board and work with it the same way as a PDF.

Yes. The board doesn't disappear. The student can come back to it any time through the same link.