A class that extends the BufferLoader class. It represents a document
loader that loads documents from PDF files.
class PDFLoaderBufferLoaderconst loader = new PDFLoader("path/to/bitcoin.pdf");
const docs = await loader.load();
console.log({ docs });Method that reads the buffer contents and metadata based on the type of
filePathOrBlob, and then calls the parse() method to parse the
buffer and return the documents.
A method that takes a raw buffer and metadata as parameters and
returns a promise that resolves to an array of Document instances. It
uses the getDocument function from the PDF.js library to load the PDF
from the buffer. It then iterates over each page of the PDF, retrieves
the text content using the getTextContent method, and joins the text
items to form the page content. It creates a new Document instance
for each page with the extracted text content and metadata, and adds it
to the documents array. If splitPages is true, it returns the
array of Document instances. Otherwise, if there are no documents, it
returns an empty array. Otherwise, it concatenates the page content of
all documents and creates a single Document instance with the
concatenated content.
Static method that imports the readFile function from the
fs/promises module in Node.js. It is used to dynamically import the
function when needed. If the import fails, it throws an error
indicating that the fs/promises module is not available in the
current environment.