Color PDF.

Choose Blue ink, Classic, Sepia, Night, Forest green or Burgundy. Each preset sets Text & dark areas and Paper & light areas together. Use either color swatch to open its picker, or enter a six-digit hex code. Valid edits update the page immediately without uploading the PDF. An incomplete code keeps the last valid color until you finish or leave the field.

Reverse source tones changes which original tones map to each color, which can help with already-dark documents. Choosing another palette preserves this setting. Original and Preview above the page let you compare; changing a color switches back to the result preview. Reset restores the initial blue-on-white palette and clears tone reversal.

The same colors apply to every page, including images and diagrams. The downloadable PDF is rendered at a 150/200/300 DPI and contains page images, not selectable text. Inspect different pages before selecting Start; keep the original for editable text, links and forms.

Text/background mapping is applied to page pixels, so image content can change too. This workflow does not let you select an existing word and change only its PDF text color. For supported selectable text and targeted formatting, use Edit PDF. Review output readability before sharing a recolored document.

This tool saves the adjusted pages as images in a new PDF at 150/200/300 DPI. Existing text becomes part of those images. It does not create a new searchable text layer or restore detail missing from the source. Use PDF OCR afterward if you need recognized text.

Select Start when the settings are ready. On the result screen, Preview opens the generated PDF and Download saves a separate copy. Back returns to the current workspace; Start over clears it for a new file. Review small text, page edges and page order in the finished copy. A new PDF does not preserve the validity of an existing digital signature.