duo·reader
Split-view PDF reader with two independently scrolling panes on the same file
duo·reader opens one PDF in two panes that scroll independently by default, with an optional sync mode for side-by-side comparison; pane layout, page, and scroll position all save automatically so you return exactly where you left off. Files stay entirely in the browser, no upload, no account, and the product deliberately stays this small: no reading analytics, no plan to grow into a document platform, just one job done well.
What holds up
- +Files never leave the browser — no upload, no account required
- +Two panes scroll independently by default — sync is opt-in, not forced
- +Layout, page, and scroll position auto-save between sessions
Mind the limits
- −Deliberately minimal — no plan to add features beyond split-pane reading
- −PDF only — no other document formats mentioned
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