Sources & illustrations

These primary references support the background explanations. Read the source for details, updates and exceptions.

Background reading

• PDF-LIB: document API
• MDN: using files in web applications
• MDN: Canvas image export
• MDN: object URLs
• Adobe: signed-PDF limitations
• W3C: PDF logical reading order
• Adobe: scanned PDF settings
• NIST: binary prefixes
• MDN: multimedia preparation

PDF library

PDF operations use locally hosted pdf-lib 1.17.1, distributed under the MIT License. Library license. Image operations use the browser Canvas API.

Original illustrations and examples

The subject illustration and guide diagrams are original vector drawings. Worked examples and practice exercises are original teaching material. They do not represent an experiment or a personal product test. We do not reproduce reference-site articles, photographs, dictionary definitions, music scores or puzzle answers.

Scope

Browser-local PDF page assembly and raster image resizing. No document signing, password removal, OCR, legal certification, cloud storage, photography teaching or AI image generation.

References checked on 18 October 2026. Product interfaces, regional advice and datasets can change after publication.