File format
Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1993 used to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. Based on the PostScript language, a PDF file encapsulates a complete description of a fixed-layout document, including the text, fonts, vector graphics, raster images and other information needed to display it.
Related work
- ask.chaipat.cc, the ask-me-anything site Key work Nov 2026
CV builder — scripts/build-cv.mjs — The CV page and its PDF.
- OMR exam system Key work Mar 2026
Exams: question papers and answer keys, both exportable as PDF; seating plans, with seat assignments and a printable PDF.
- Mistral OCR to LaTeX Jun 2026
Mistral OCR to LaTeX is a web app that takes a PDF or photo of an academic document, such as an exam or problem set, and returns a compilable .tex file with the questions and solutions visually separated.
- zed-pdf-lsp Mar 2026
zed-pdf-lsp is a language server, written in Rust, that lets the Zed editor open PDF files.
- Thai OMR answer sheet generator Mar 2026
It draws the PDFs with ReportLab, makes the QR codes with the qrcode package and bundles a Thai font, so the sheets look the same on any machine.
- research-os Mar 2026
It is meant as a central hub for storing, categorising and moving PDFs, LaTeX sources, datasets and model weights between his own machines and remote servers.
- ADrive Feb 2026
Previews for images, video, audio, PDFs and text. A built-in database viewer in development mode.
- CV builder (ask.chaipat.cc)
A GitHub Actions job then prints it to PDF with Playwright and a headless Chromium, shrinking the type until it fits one page, and commits the file whenever the graph changes.
- PDF to PNG converter Jul 2024
PDF to PNG converter is a Flask web app that turns an uploaded PDF into one PNG image per page, ready to download.
In the knowledge graph
PDF and the 9 things it is linked to. Open any dot for its page, or explore it in the full graph.
As data
Everything on this page is read from triples in the knowledge graph. These are the 5 it states about PDF, and 1 more its ontology implies; the console runs SPARQL over the whole graph, here in your browser.
@prefix id: <https://ask.chaipat.cc/id/> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix cj: <https://ask.chaipat.cc/ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix schema: <https://schema.org/> . id:PDFFormat a cj:FileFormat ; rdfs:label "PDF" ; skos:altLabel "PDF" , "PDFs" ; schema:sameAs <https://en.wikipedia.org/wiki/PDF> .