PDF dark mode
Turn a white-background PDF into a dark one that is easy on the eyes at night. Text, shapes and charts are recolored for readability while photos stay as they are. Files never leave your browser.
Choosing a new file replaces the current PDF. Your originals stay unchanged.
Groups text, backgrounds, shapes and lines by original color and background context. Images are classified and adjusted automatically; choose a different mode or restore the original if needed. Partial highlights change only the relevant glyph paint while retaining text and positions. Complex patterns, gradients, color spaces, inline images and stencil masks may stay unchanged. OCR is not supported. Forms, signatures and encrypted PDFs are not supported.
How it works
- Choose a PDF. Pages turn dark right away, starting from the first ones.
- Page through the viewer to check. If needed, pick a background or change element colors in edit mode.
- Click Download PDF. Text, vectors and images are preserved.
More tools
Merge PDFs
Merge several PDFs into one · Drag to set the order
Extract or delete PDF pages
Extract chosen pages · Delete selected pages
Rotate & reorder PDF pages
Drag pages to reorder · Rotate one or all pages
Add page numbers to PDF
Starting number and format · Position, size and color
Add a PDF watermark
Text watermark in any language · Position, size, color, opacity, angle
Split PDF
Split into single pages · Split by custom ranges
Edit or remove PDF metadata
Edit title, author and keywords · Edit creation and modified dates
Crop PDF
Drag to choose the area · Per page or all pages
PDF to image
Every page to PNG · Up to 4096 px on the long edge
Image to PDF
Several JPG or PNG images to PDF · Drag to set the order
Video to 9:16 shorts
Make vertical shorts with a title and captions
Trim video
Keep the part you need and save MP4
Crop video
Keep only the part of the picture you want
Video converter
Convert to MP4, MOV, AVI, WebM, GIF or MP3
Volume & mute
Turn the sound up, down or off, with fades
Extract audio
Get the sound as MP3, M4A or WAV