PDF & Image Utilities
Convert PDFs, extract tables and links, transform Excel and JSON, manage image metadata, resize for social, and run OCR—15 free file utilities with no paid APIs.
All PDF & Image Tools
15 utilities for documents, spreadsheets, images, and OCR.
PDF to Markdown Converter
Convert PDFs to clean Markdown with headings and lists
PDF Table Extractor
Detect tables and export CSV, Excel, or JSON
PDF Link Extractor
Extract URLs, emails, phones, and internal links
PDF Metadata Viewer
View author, dates, encryption, and PDF permissions
PDF Image Extractor
Extract embedded images with gallery and ZIP download
Excel Formula Generator
Rule-based formulas for lookup, math, date, text & logic
Excel Formula Explainer
Explain Excel formulas, arguments, and expected output
Excel to JSON Converter
Convert Excel worksheets to structured JSON
JSON to Excel Converter
Validate JSON and download as XLSX
CSV to Excel Converter
Upload CSV, preview rows, download XLSX
Image Metadata Viewer
View EXIF camera, GPS, ISO, aperture, and resolution
EXIF Metadata Remover
Strip image metadata while preserving quality
Image Color Palette Extractor
Dominant colors with HEX, RGB, CSS & Tailwind hints
Social Media Image Resizer
Resize for Instagram, Facebook, LinkedIn, X, TikTok & more
Screenshot to Text (OCR)
OCR screenshots to copyable text, TXT, or Markdown
Choose the Right Utility
Match your file task to the right starting point in the suite.
Work with PDFs
Convert documents to Markdown, extract tables, links, metadata, and embedded images.
Excel & spreadsheet helpers
Generate or explain formulas and convert between Excel, JSON, and CSV.
Image metadata & design
Inspect or strip EXIF data and pull dominant colors for design systems.
Resize & OCR
Prepare images for social platforms and turn screenshots into editable text.
File Utility Learning
Core concepts behind the PDF and image toolkit.
Why Markdown from PDF helps
Clean Markdown keeps headings and lists editable for blogs, docs, and LLM pipelines without messy copy-paste from PDFs.
EXIF privacy risk
Photos often embed camera, GPS, and device details. Strip metadata before sharing client or personal images publicly.
Social crop sizes
Each network expects different aspect ratios. Resize once per platform to avoid blurry auto-crops in feeds.
OCR for screenshots
Screenshots of chats, dashboards, and docs become searchable notes when OCR exports plain text or Markdown.
Frequently Asked Questions
Common questions about the PDF & Image Utilities suite.
What is the PDF & Image Utilities suite on ZetaWala?
It is a suite of 15 free utilities for PDF conversion and extraction, Excel/JSON/CSV transforms, image metadata and color tools, social resizing, and screenshot OCR—processed with open-source Node libraries, not paid APIs.
Do these tools use AI?
Most tools are deterministic file processors. Formula helpers are rule-based. OCR uses Tesseract.js for text recognition rather than a generative LLM.
Which tool should I start with?
Start with PDF to Markdown for documents, Excel Formula Generator for spreadsheets, Image Metadata Viewer for photos, or Screenshot to Text for OCR.
Are uploads stored?
Files are processed for your request and are not retained as a permanent library. Keep originals on your device for safety.
Where can I read related guides?
Visit the PDF & Image Utilities blog section for conversion, EXIF, and OCR tips.