What is a .PDF file?
PDF (Portable Document Format) is a fixed-layout document format for sharing and printing. Created and read by Adobe Acrobat, browsers and countless apps.
- Did you know
- Adobe co-founder John Warnock created PDF in 1993; it became an open ISO standard in 2008.
- PDF grew out of Adobe’s internal “Camelot” project, which aimed to let any document be viewed and printed on any machine regardless of the originating software.
- A single PDF can embed fonts, raster and vector images, forms, JavaScript, attachments and even 3D models, all inside one self-contained file.
- On the web a .PDF file is served with the MIME type
application/pdf. - Analyser spots a .PDF file by its signature bytes
25 50 44 46- ASCII for "%PDF".
- What Analyser shows you
- View pages, extract text and embedded images, run OCR, and read the metadata of PDF documents.
- Open a .PDF file
- Drag a .PDF file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
- Related formats
- Browse the full list of supported file types.