
Research
/Security News
Critical Vulnerability in NestJS Devtools: Localhost RCE via Sandbox Escape
A flawed sandbox in @nestjs/devtools-integration lets attackers run code on your machine via CSRF, leading to full Remote Code Execution (RCE).
pymupdf-node
Advanced tools
PyMuPDF for Node JS
npm install pymupdf-node
Import into your source code with:
import * as PyMuPDFNode from "pymupdf-node";
Wheels should be loaded into the pymupdf
module with:
const pymupdf = await PyMuPDFNode.loadPyMuPDF("node_modules/pymupdf-node/pymupdf/pymupdf-1.26.0-cp312-abi3-pyodide_2024_0_wasm32.whl");
And if you need PyMuPDF4LLM, into the pymupdf4LLM
module with:
const pymupdf4LLM = await PyMuPDFNode.loadPyMuPDF4LLM("node_modules/pymupdf-node/pymupdf/pymupdf4llm-0.0.24-py3-none-any.whl");
let doc = pymupdf.open("test.pdf");
doc.copy_page(0);
const md = pymupdf4LLM.to_markdown(doc, {
page_chunks: false,
write_images: false,
ignore_images: true,
image_path: "",
extract_words: false,
show_progress: false,
});
console.log(md);
PyMuPDF Node is PyMuPDF for JavaScript environments, but just use the PyMuPDF Python API as if it was JavaScript, see the PyMuPDF API documentation.
import * as PyMuPDFNode from "../dist/pymupdf-node.js";
import * as fs from "fs";
const pymupdf = await PyMuPDFNode.loadPyMuPDF("../pymupdf/pymupdf-1.26.0-cp312-abi3-pyodide_2024_0_wasm32.whl");
const pymupdf4LLM = await PyMuPDFNode.loadPyMuPDF4LLM("../pymupdf/pymupdf4llm-0.0.24-py3-none-any.whl");
function logSection(title) {
console.log(`\n===== ${title} =====`);
}
function printMarkdown(doc, label = "Document Snapshot") {
logSection(`📄 Print Markdown: ${label}`);
const identifyHeaders = new pymupdf4LLM.IdentifyHeaders(doc);
const tocHeaders = new pymupdf4LLM.TocHeaders(doc);
const md = pymupdf4LLM.to_markdown(doc, {
page_chunks: false,
write_images: false,
ignore_images: true,
image_path: "",
extract_words: false,
show_progress: false,
});
console.log(md);
}
function openFreshDoc() {
return pymupdf.open("test.pdf");
}
let doc = openFreshDoc();
logSection("1. Initial Page Count");
console.log("Page count:", doc.page_count);
printMarkdown(doc, "Initial PDF");
doc = openFreshDoc();
logSection("2. Copy Page");
doc.copy_page(0);
console.log("Copied page 0 to the end");
printMarkdown(doc, "After copy_page(0)");
doc = openFreshDoc();
logSection("3. Add New Page (end)");
doc.new_page();
console.log("Added blank page at the end");
printMarkdown(doc, "After new_page()");
doc = openFreshDoc();
logSection("4. Add New Page (index 1, custom size)");
doc.new_page(1, 400, 500);
console.log("Inserted blank page at index 1 (400x500)");
printMarkdown(doc, "After new_page(1, 400, 500)");
doc = openFreshDoc();
logSection("5. Insert Page with Text");
const count = doc.insert_page({ pno: 0, text: "Inserted Page Content" });
console.log(`Inserted text page at index 0 (lines inserted: ${count})`);
printMarkdown(doc, "After insert_page()");
doc = openFreshDoc();
logSection("6. Delete Last Page");
doc.delete_page(doc.page_count - 1);
console.log("Deleted last page");
printMarkdown(doc, "After delete_page()");
doc = openFreshDoc();
logSection("7. Delete Pages by Array");
doc.delete_pages([1, 2]);
console.log("Deleted pages at index 1 and 2");
printMarkdown(doc, "After delete_pages([1, 2])");
doc = openFreshDoc();
logSection("8. Delete Page Range 0–1");
doc.delete_pages(0, 1);
console.log("Deleted pages from index 0 to 1");
printMarkdown(doc, "After delete_pages(0, 1)");
doc = openFreshDoc();
logSection("9. Set & Get Page Labels");
doc.set_page_labels([{ startpage: 0, prefix: "L-", style: "D", firstpagenum: 1 }]);
const labels = doc.get_page_labels();
console.log("Page labels:", labels);
const match = doc.get_page_numbers("L-1");
console.log("Page numbers with label 'L-1':", match);
doc = openFreshDoc();
logSection("10. Bake Document");
doc.bake(true, true);
console.log("Baked document (annotations + widgets)");
doc = openFreshDoc();
logSection("11. Scrub Metadata");
doc.scrub({ metadata: true, javascript: true });
console.log("Scrubbed metadata and javascript");
doc = openFreshDoc();
const doc2 = openFreshDoc();
logSection("12. Insert PDF Page from Another Doc");
doc.insert_pdf(doc2, { from_page: 0, to_page: 0 });
console.log("Inserted first page of another doc");
printMarkdown(doc, "After insert_pdf()");
doc = openFreshDoc();
logSection("13. Embed File");
const buffer = fs.readFileSync("test.pdf");
const xref = doc.embfile_add("sample", buffer.buffer, "test.pdf", "test.pdf", "Embedded sample PDF");
console.log("Embedded file XREF:", xref);
doc = openFreshDoc();
logSection("14. Add annot, link, text, etc");
const page = doc.load_page(0);
page.add_caret_annot([10, 10]);
page.add_text_annot([10, 30], 'This is a text annotation.');
page.add_freetext_annot([50, 30, 300, 80], 'This is a free_text annotation.', { fontsize: 14, richtext: true, border_color: [0, 0, 0], border_width: 2 });
page.add_file_annot([10, 70], fs.readFileSync('./test.pdf').buffer, 'pymupdf4node.pdf');
page.add_ink_annot([
[[10, 90], [30, 110], [50, 90]],
]);
page.add_line_annot([10, 110], [30, 130]);
page.add_rect_annot([10, 150, 30, 170]);
page.add_circle_annot([10, 170, 30, 190]);
page.add_polyline_annot([[10, 190], [30, 210], [50, 190]]);
page.add_polyline_annot([[10, 210], [30, 230], [50, 210]]);
page.add_underline_annot({ quads: [[10, 230, 50, 240]] });
page.add_strikeout_annot({ quads: [[10, 250, 50, 260]] });
page.add_squiggly_annot({ quads: [[10, 270, 50, 280]] });
page.add_highlight_annot({ quads: [[10, 290, 50, 300]] });
page.add_stamp_annot([10, 310, 50, 350], 3);
page.add_redact_annot([10, 370, 50, 410], { text: 'pymupdf4node redact', fill: [0, 0, 0], text_color: [1, 1, 1] });
page.apply_redactions();
page.add_redact_annot([10, 430, 50, 470], { cross_out: false });
page.insert_link({ from: [10, 490, 50, 530], kind: 2, uri: 'https://pymupdf.readthedocs.io/en/latest/vars.html#linkdest-kinds' });
page.insert_text([10, 550], 'Inserted Text');
page.delete_annot(page.add_freetext_annot([310, 30, 570, 80], 'This is a free_text annotation.', { fontsize: 14, richtext: true, border_color: [0, 0, 0], border_width: 2 }));
doc.load_page(1).set_rotation(180);
doc.load_page(2).set_cropbox([10, 10, 100, 100]);
await doc.save('./pdf/output.pdf');
console.log("Please check the PDF located at the \"tests/pdf/output.pdf\" location.");
logSection('15. Find tables in page');
const results = page.find_tables();
results.tables.forEach(table => console.log(table.to_markdown()));
logSection('16. Get XML metadata');
const metadata = doc.get_xml_metadata()
console.log("XML metadata=", metadata);
FAQs
PyMuPDF with JS
The npm package pymupdf-node receives a total of 38 weekly downloads. As such, pymupdf-node popularity was classified as not popular.
We found that pymupdf-node demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Research
/Security News
A flawed sandbox in @nestjs/devtools-integration lets attackers run code on your machine via CSRF, leading to full Remote Code Execution (RCE).
Product
Customize license detection with Socket’s new license overlays: gain control, reduce noise, and handle edge cases with precision.
Product
Socket now supports Rust and Cargo, offering package search for all users and experimental SBOM generation for enterprise projects.