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PDF.js. A general-purpose, web standards-based platform for parsing and rendering PDFs. Download Demo GitHub Project.
Create alt text automatically. Suggests descriptions to help people who can’t see the image or when the image doesn’t load. Learn more. Alt text AI model (180MB) Runs locally on your device so your data stays private. Required for automatic alt text. Download.
With the prebuilt or source version, open web/viewer.html in a browser and the test pdf should load. Note: the worker is not enabled for file:// urls, so use a server. If you're using the source build and have node, you can run npx gulp server. More Information. For a further walkthrough of a minimal viewer, see the hello world example.
This tutorial shows how PDF.js can be used as a library in a web browser. examples/ provides more examples, including usage in Node.js (at examples/node/). Document. The object structure of PDF.js loosely follows the structure of an actual PDF. At the top level there is a document object.
A general-purpose, web standards-based platform for parsing and rendering PDFs.
PDF.js web worker abstraction that controls the instantiation of PDF documents. Message handlers are used to pass information from the main thread to the worker thread and vice versa. If the creation of a web worker is not possible, a "fake" worker will be used instead.
This is the main entry point for loading a PDF and interacting with it. NOTE: If a URL is used to fetch the PDF data a standard Fetch API call (or XHR as fallback) is used, which means it must follow same origin rules, e.g. no cross-domain requests without CORS.
Home. Home Modules. pdfjsLib; Classes. PDFDataRangeTransport; PDFDocumentLoadingTask; PDFDocumentProxy
PDFDataRangeTransport. (length, initialData, progressiveDone. , contentDispositionFilename. ) Abstract class to support range requests file loading. NOTE: The TypedArrays passed to the constructor and relevant methods below will generally be transferred to the worker-thread.
We implemented these techniques for an existing JavaScript in-terpreter, SpiderMonkey. We call the resulting tracing VM Trace-Monkey. TraceMonkey supports all the JavaScript features of Spi-derMonkey, with a 2x-20x speedup for traceable programs. This paper makes the following contributions: