Images & Graphics

Overview

PyMuPDF4LLM can extract images and graphics from documents in two ways: writing them as files to disk, or embedding them as base64-encoded data in the JSON output. When images are written to disk, their paths are referenced inline in the Markdown output using standard image syntax. Image extraction is disabled by default. To enable it, pass write_images=True to to_markdown().

import pymupdf4llm

md_text = pymupdf4llm.to_markdown("document.pdf", write_images=True)

Writing Images to Disk

When write_images=True is set, each image found in the document is saved as an individual file. The path to each image is embedded in the Markdown output:

![](assets/images/page-1-image-0.png)

By default, images are written to the current working directory. Use image_path to specify a different output directory:

md_text = pymupdf4llm.to_markdown(
    "document.pdf",
    write_images=True,
    image_path="assets/images/"
)

PyMuPDF4LLM will create the output directory automatically.

Image Format

Use the image_format parameter to control the file format of extracted images. Supported formats are 'png', 'pnm', 'pgm', 'ppm', 'pbm', 'pam', 'psd', 'ps', 'jpg', 'jpeg':

md_text = pymupdf4llm.to_markdown(
    "document.pdf",
    write_images=True,
    image_path="assets/images/",
    image_format="jpeg"
)

Format	Best For	Notes
`"png"`	Diagrams, screenshots, charts	Lossless. Larger file size. Default.
`"jpeg"`	Photographs, scanned pages	Lossy. Smaller file size.

Use "png" when image fidelity matters — for example, when extracting charts, diagrams, or figures that contain readable text. Use "jpeg" for photographic content where file size is a concern.

DPI and Resolution

The dpi parameter controls the resolution at which raster images are rendered. The default is 150 DPI, which is a good balance between file size and clarity.

md_text = pymupdf4llm.to_markdown(
    "document.pdf",
    write_images=True,
    dpi=300  # higher quality, larger file size
)

DPI	Use Case
`72`	Low-quality preview thumbnails
`150`	Standard extraction (default)
`300`	Print-quality or OCR pre-processing

High DPI values significantly increase both file sizes and processing time, especially for documents with many images. Only increase DPI if you have a specific need for higher resolution.

Embedded vs. File Images

File Images (Markdown)

When using to_markdown() with write_images=True, images are written to disk and referenced by path in the Markdown:

md_text = pymupdf4llm.to_markdown(
    "document.pdf",
    write_images=True,
    image_path="assets/",
    image_format="png",
    dpi=150
)

The Markdown output will contain image references like:

Some preceding text.

![](assets/page-1-image-0.png)

Some following text.

Embedded Images

When using to_markdown() or to_json(), images can be included directly in the output as base64-encoded byte strings by setting the embed_images parameter to True— no files are written to disk:

import pymupdf4llm

data = pymupdf4llm.to_json("document.pdf", write_images=True, embed_images=True)

For example the image block in JSON output will be presented as follows:

{
   "boxes": 
  [
    {
      "x0": 72.0, 
      "y0": 72.0, 
      "x1": 523.2999877929688, 
      "y1": 418.2499694824219, 
      "boxclass": "picture", 
      "image": "<base64-encoded-string>"
    }
  ]
}

Vector Graphics

PyMuPDF4LLM detects vector drawings — lines, shapes, filled regions and can rasterise them to image files by default, but their bounding boxes are preserved so you can identify and handle them in your pipeline.

Image File Naming

Extracted image files are named automatically using the pattern:

filename-{page_number}-{image_index}.{ext}

For example, the second image on page 3 for a document called document.pdf would be saved as:

document-0003-01.png

Page numbers are zero-based and indices increment per page, resetting on each new page.

Full Example

import pymupdf4llm

# Extract Markdown with images saved to disk
md_text = pymupdf4llm.to_markdown(
    "report.pdf",
    write_images=True,
    image_path="output/images/",
    image_format="png",
    dpi=150
)

# Save the Markdown file
Path("output/report.md").write_text(md_text, encoding="utf-8")

print("Done.")
print(f"Images saved to: output/images/")
print(f"Markdown saved to: output/report.md")

For the full API signature, see the to_markdown() API reference & to_json() API reference.

Next Steps

Extract Markdown

Full walkthrough of to_markdown() with all common options.

Extract JSON

Access embedded image data via the JSON output.

Tables

Table extraction explained.

Saving Output

Write Markdown and image files together with pathlib.

Getting Started

Guides

Integrations

Reference

Images & Graphics

Overview

Writing Images to Disk

Image Format

DPI and Resolution

Embedded vs. File Images

File Images (Markdown)

Embedded Images

Vector Graphics

Image File Naming

Full Example

Next Steps

Extract Markdown

Extract JSON

Tables

Saving Output

​Overview

​Writing Images to Disk

​Image Format

​DPI and Resolution

​Embedded vs. File Images

​File Images (Markdown)

​Embedded Images

​Vector Graphics

​Image File Naming

​Full Example

​Next Steps

Extract Markdown

Extract JSON

Tables

Saving Output

Overview

Writing Images to Disk

Image Format

DPI and Resolution

Embedded vs. File Images

File Images (Markdown)

Embedded Images

Vector Graphics

Image File Naming

Full Example

Next Steps