How to use:

Upload one or more PDF files using the button below
Rearrange pages with simple drag-and-drop
Click the + button between pages to insert a blank page
Click the X button on any page to remove it
Click "Darken Text" to make all text completely black (great for scanned documents)
When ready, click "Save PDF" to download your final document

Cite this tool

DOI: https://doi.org/10.5281/zenodo.20981324

Kapita, S. (2026). PDF Sort + Darken Text. Math Tools. https://doi.org/10.5281/zenodo.20981324

Kapita, Shelvean. "PDF Sort + Darken Text." Math Tools, 2026, doi.org/10.5281/zenodo.20981324.

@online{kapita2026pdfdark,
  author       = {Shelvean Kapita},
  title        = {{PDF Sort + Darken Text}},
  year         = {2026},
  organization = {Math Tools},
  doi          = {10.5281/zenodo.20981324},
  url          = {https://doi.org/10.5281/zenodo.20981324}
}