Reveal what's
hiding in plain sight
SPECTRE scans documents for invisible text, vanished runs, micro fonts, PDF hidden layers, and metadata injections — so nothing slips past you.
Drop your document here
or click to browse — processed entirely in your browser
What SPECTRE detects
White text
#FFFFFF on white background
docx pptx pdf
Vanish flag
w:vanish — Word's hide feature
docx
Micro font
< 5pt — physically unreadable
docx pptx pdf
PDF layers
Invisible render mode Tr 3
Behind image
Text covered by image in stream
Off-page
Content outside visible canvas
pptx pdf
Metadata
Injected into doc properties
docx pdf md
Zero-width
Unicode steganography chars
docx txt md
BiDi override
Directional overrides hide text
txt md
Invisible chars
Braille blank, Hangul fillers…
txt md
Homoglyphs
Lookalike Cyrillic/Greek chars
txt md