I read a lot of PDFs at night, especially on my phone.
And honestly, PDFs are not great for that.
Most of them still feel like digital paper: white background, fixed layout, and tiny text. Dark mode helps a bit, but many tools only change the page color.
The bigger problem for me was mobile reading.
When the text is too small, I have to pinch zoom, move the page left and right, zoom out again, then repeat the same thing on the next paragraph.
After doing that too many times, I thought:
Why can’t I just read the PDF text like an article?
So I built a small free tool:
It has two reading modes.
Page color mode
This keeps the original PDF layout, but makes the page darker and easier to read at night.
I use this for scanned PDFs, tables, image-heavy documents, or files where the original layout matters.
Text reading mode
For selectable PDFs, the tool can extract the text and show it in a cleaner reading view.
You can adjust the font size, line height, font family, and theme.
This is the part I personally wanted most, because it makes mobile reading much more comfortable. Instead of constantly pinch-zooming a fixed PDF page, the PDF starts to feel more like a normal article.
Privacy
The tool runs locally in the browser.
Your PDF is not uploaded to a server, and refreshing the page clears the current session.
Try it
You can try it here:
I built it for my own night reading, but I’d love to hear feedback from anyone who reads PDFs on mobile.
Also, if you ever need to convert a dark PDF back to a light version, I made a related tool for that too:
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