Reading formats

PDF

• discovery: extension .pdf;
• backend: /conteudo with HEAD/get and range for local file;
• frontend: PDF.js legacy and worker packaged by Vite as .js;
• pages: canvas sized to viewport; current/neighboring cache;
• cover: internal/provider or first page via Poppler/pipeline;
• progress: page, total and percentage;
• cleanup: cancels render tasks, clears canvas/cache and destroys document; -limitation: Corrupted/protected PDFs may fail; external sources depend on the source.

ePUB

• discovery: .epub;
• backend: delivers the file, including Range when local file;
• frontend: epubParser.js uses JSZip for container, OPF, spine and resources; does not use epubjs library;
• CAPA: metadata/manifest or fallback generated;
• progress: paginated unit/position of normalized content;
• cleanup: removes temporary URLs/DOM;
• limitation: EPUBs with non-standard features/DRM may not renderfully.

MOBI

• discovery: .mobi;
• backend: reader service/parser provides content, pages and /recursos/mobi/:recindex;
• frontend: mobiParser.js normalizes payload and references;
• CAPA: internal record when extractable, then fallbacks;
• progress: page/total;
• limitation: proprietary variants/DRM and malformed MOBI.

Cbz

• discovery: .cbz;
• backend: JSZip creates ordered index and serves /paginas/:page;
• frontend: comicClient.js fetches images on demand and keeps Object URLs nearby;
• cover: first image;
• progress: image index;
• cleanup: revokes Object URLs.

cbr

• discovery: .cbr;
• backend: UnRAR and 7-Zip fallback for index/page;
• frontend: same comics reader;
• cover: first image;
• limitation: requires compatible tools/file; protected files or unsupported RAR variants fail.