Knowledge base

Practical OCR and data extraction guides

Learn how to recover tables and text from screenshots, PDFs, web pages, scans, and photos—and how to review the result before using it.

TABLE OCRLOCAL OCRPDF WORKFLOWS
Illustration for AI vs. Local Table Recognition: Choosing with Real Examples

Browse all

Latest guides

20 published articles
3 min

How to Convert a Document Screenshot to Markdown

Learn how to turn document screenshots into structured, editable Markdown text with proper headings, lists, and code blocks.

Read article
5 min

How to Extract a Table from an Image Without Uploading It

Learn how to extract tables from sensitive images directly inside your browser without uploading files to external cloud servers.

Read article
4 min

How to Extract Text from a Two-Column Document Image

Learn two practical ways to extract text from a two-column document image while preserving the correct reading order.

Read article
5 min

How AI Table Recognition Works

How imgtotable uses HunyuanOCR to generate HTML from a table image, then rebuilds editable cells and merged headers for spreadsheet export.

Read article
5 min

How Browser-Based OCR Works

See how browser-based OCR uses text detection, recognition models, Web Workers, WebGPU, and WebAssembly to extract text on your device.

Read article
3 min

How Local Table Recognition Works

Learn how browser-local table recognition uses text detection, structure prediction, and spatial matching to turn table screenshots into Excel grids.

Read article
4 min

How to Install and Use the imgtotable Chrome Extension

A complete beginner's guide to installing the imgtotable Chrome extension, capturing your first web screenshot, and converting it in seconds.

Read article
5 min

What Image to Markdown Can Preserve

Learn how image-to-Markdown handles columns, tables, formulas, and pictures, what it omits automatically, and which visual details need review.

Read article
7 min

What Is Markdown? A Beginner's Guide

See how Markdown works with a meeting note, copyable syntax examples, and previews. Learn headings, lists, links, images, code blocks, and tables.

Read article
4 min

How to Convert a Flowchart Image to Mermaid

Learn how to turn static flowchart images and architecture diagrams into editable Mermaid JS code and SVG graphics using AI vision recognition.

Read article
6 min

How to Convert an Image to an Editable Word Document

Learn how to convert scanned page images into editable Word documents, and compare DOCX with Markdown for headings, tables, editing, and sharing.

Read article
3 min

How to Convert Images to JPG, PNG, or WebP

Convert JPG, PNG, WebP, GIF, BMP, AVIF, TIFF, HEIC, or HEIF images to JPG, PNG, or WebP in your browser without uploading your files.

Read article
3 min

How to Convert Images to PDF

Combine images into one PDF for free, without uploading them. Follow three simple steps and see an example merging two diagrams into an A4 document.

Read article
3 min

Five Everyday Uses for the imgtotable Chrome Extension

Use the imgtotable Chrome extension to extract tables, tutorial steps, equations, scanned text, and event details while browsing web pages and PDFs in Chrome.

Read article
5 min

What Is PP-OCRv6?

Understand PP-OCRv6, the difference between text detection and recognition, and how lightweight AI models power browser-local OCR.

Read article
4 min

How to Convert a Scanned Document to Editable Text

Photograph or scan a paper page, run browser-local OCR, check wording and paragraphs, and save a corrected text copy.

Read article
3 min

How to Convert a Formula Image to LaTeX

Convert a formula photo or screenshot to LaTeX, check symbols and grouping, and test the corrected expression in your destination editor.

Read article
4 min

How to Extract Text from an Image with Browser OCR

Learn how to extract editable plain text from screenshots and document photos locally in your web browser with data privacy.

Read article
4 min

How to Convert a Table Image to Excel or Markdown

Choose AI or local table recognition, check rows and values, and export a table screenshot to Excel, CSV, or Markdown.

Read article

Open a workspace

Continue in the tool directory

Compare all server-assisted and on-device workflows in one place.

Browse all tools