PDF to Markdown Conversion: Difference between revisions

(3 intermediate revisions by the same user not shown)

Line 1:

PDF to Markdown Conversion

== Introduction ==

{{Tips}} Many people recommend MarkItDown, a tool developed by Microsoft, which works well on text-based PDFs but requires enabling its OCR plugin for image-based PDFs and even then, conversions can still fail;

for Chinese-language PDFs in particular, the OCR models with better accuracy tend to come from Chinese vendors, which adds the extra burden of converting between Simplified and Traditional Chinese and proofreading the results, making this data-cleaning process quite labor-intensive, so by comparison, converting documents directly with a multimodal large language model turns out to be more efficient.

== 1. Text-Based PDFs ==

If the PDF content is primarily text-based, you can use:

* [https://github.com/microsoft/markitdown MarkItDown] (consumes no AI tokens)

* If you don't need Markdown formatting and just want to extract plain text, you can also use <code>pdftotext</code> https://www.xpdfreader.com/pdftotext-man.html

== 2. Image-Based PDFs ==

If the PDF content is primarily image-based (scanned documents, screenshots, charts, etc.), it's recommended to:

* Use a model with vision/graphical recognition or multimodal capabilities directly, such as GPT-4.5 (consumes AI tokens)

* Or use the [https://github.com/microsoft/markitdown/blob/main/packages/markitdown-ocr/README.md MarkItDown OCR Plugin] (consumes AI tokens), though it tends to make mistakes with more complex charts/diagrams

=== Introduction ===

This prompt is designed to convert a PDF document into structured Markdown while preserving not only its textual content, but also information contained in images, charts, screenshots, scanned pages, diagrams, and other visual elements.

Line 7:

Line 25:

The goal is to produce a Markdown representation that preserves the original document as faithfully as possible, including its content, structure, reading order, tables, formatting, visually embedded text, and source references.

== Model Requirements ==

=== Model Requirements ===

This prompt should be used with an AI model that supports '''vision, image understanding, or multimodal input'''.

Line 23:

Line 41:

A text-only model, or a PDF processing pipeline that extracts only the PDF text layer, is '''not sufficient''' for this task because text embedded in screenshots, scanned pages, charts, diagrams, or other images may otherwise be omitted.

== ~~Task~~ ==

=== Prompt ===

Prompt

Line 98:

Line 116:

[[Category: Tools]]

[[Category: PDF Processing]]

[[Category: Document Conversion]]

@@ Line 1: / Line 1: @@
 PDF to Markdown Conversion
-== Introduction ==
+{{Tips}} Many people recommend MarkItDown, a tool developed by Microsoft, which works well on text-based PDFs but requires enabling its OCR plugin for image-based PDFs and even then, conversions can still fail;
+for Chinese-language PDFs in particular, the OCR models with better accuracy tend to come from Chinese vendors, which adds the extra burden of converting between Simplified and Traditional Chinese and proofreading the results, making this data-cleaning process quite labor-intensive, so by comparison, converting documents directly with a multimodal large language model turns out to be more efficient.
+== 1. Text-Based PDFs ==
+If the PDF content is primarily text-based, you can use:
+* [https://github.com/microsoft/markitdown MarkItDown] (consumes no AI tokens)
+* If you don't need Markdown formatting and just want to extract plain text, you can also use <code>pdftotext</code> https://www.xpdfreader.com/pdftotext-man.html
+== 2. Image-Based PDFs ==
+If the PDF content is primarily image-based (scanned documents, screenshots, charts, etc.), it's recommended to:
+* Use a model with vision/graphical recognition or multimodal capabilities directly, such as GPT-4.5 (consumes AI tokens)
+* Or use the [https://github.com/microsoft/markitdown/blob/main/packages/markitdown-ocr/README.md MarkItDown OCR Plugin] (consumes AI tokens), though it tends to make mistakes with more complex charts/diagrams
+=== Introduction ===
 This prompt is designed to convert a PDF document into structured Markdown while preserving not only its textual content, but also information contained in images, charts, screenshots, scanned pages, diagrams, and other visual elements.
@@ Line 7: / Line 25: @@
 The goal is to produce a Markdown representation that preserves the original document as faithfully as possible, including its content, structure, reading order, tables, formatting, visually embedded text, and source references.
-== Model Requirements ==
+=== Model Requirements ===
 This prompt should be used with an AI model that supports '''vision, image understanding, or multimodal input'''.
@@ Line 23: / Line 41: @@
 A text-only model, or a PDF processing pipeline that extracts only the PDF text layer, is '''not sufficient''' for this task because text embedded in screenshots, scanned pages, charts, diagrams, or other images may otherwise be omitted.
-== Task ==
+=== Prompt ===
 Prompt
@@ Line 98: / Line 116: @@
 [[Category: Tools]]
+[[Category: PDF Processing]]
+[[Category: Document Conversion]]