05 / 09Document productivity tool
Classnote Sorter
A privacy-first PDF workspace that helps students combine, reorder, transform, and print class notes through one focused browser workflow.

The problem
The challenge
Preparing class notes took too many separate tools.
Students often receive PDFs in the wrong order, with unwanted pages, dark backgrounds, or print-unfriendly layouts. Fixing one set of notes could mean several websites and unnecessary uploads of private documents.
What we changed
The key decision
Keep the whole print workflow in one place.
We designed a continuous workspace where every edit is visible and reversible. PDF processing happens in the browser, giving students immediate feedback while keeping source files on their own device.
The product
The experience
From mixed PDFs to a print-ready file.
Students can import several documents, reorder or remove pages, merge files, adjust print layouts, convert colours, add page numbers, and export the result without leaving the workspace.
What it enables
Useful outcomes for the people using it.
- 01
Organise pages from several PDFs in one drag-and-drop workspace
- 02
Create paper-saving print layouts with clear visual controls
- 03
Improve dark or colour-heavy notes before printing
- 04
Experiment safely with progress feedback and undo history
Under the hoodTechnical details
- PDF.js and pdf-lib handle rendering and document changes locally in the browser.
- Optional accounts provide a personal dashboard for saved output files.
- MongoDB and ImageKit support authenticated file records and storage.
Results
Project evidence
