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Browse the tool catalog | Page 82

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 82.

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Math, Date & Finance586

Calculators, numerics, date logic, statistics, and finance tools

Images, Audio & Video564

Image, audio, and video processing, conversion, and optimization tools

Design & Color284

Color, layout, graphics, visual styling, and design helper tools

Text & Writing200

Writing, cleanup, formatting, extraction, and text analysis tools

Conversion & Encoding167

Format, file, archive, unit, and encoding conversion tools

Developer & Web163

Developer utilities, networking, web debugging, and automation helpers

Audio Encoding and Format Conversion Tools

Image Format Conversion and Animated Export Tools

JSON Interchange and Format Translation Tools

Color Space Conversion Tools for Web and Print

Text Case, Encoding, and Normalization Conversion Tools

Docs Pricing Terms of Service Privacy Policy Contact

Math & Numbers

Percent Error Calculator

Calculate percent error between an experimental value and a reference value

Math & Numbers

Percentage Decrease Calculator

Calculate the percentage decrease between an original value and a new value

Math & Numbers

Percentage Increase Calculator

Calculate the percentage increase between an original value and a new value

PDF Tools

PDF Stationery Underlay

Place document pages on top of stationery/background template pages (letterhead style underlay)

PDF Tools

PDF Usage Tracking ID Reader

Extract embedded tracking ID and page serial values from tracked PDF files

PDF Tools

PDF Usage Tracking ID

Embed near-invisible tracking ID/serial into page corners for distribution tracing

PDF Tools

PDF Watermark Confidential

Generate dynamic confidential watermark with username and timestamp

PDF Tools

PDF Split by Pages

Split a PDF by custom page ranges or single-page mode

Document Tools

PDF Stamp Annotations

Apply visual stamp overlays like REVIEWED, CONFIDENTIAL, or DRAFT to selected pages

Document Tools

PDF Vector Shapes Demo

Generate a PDF showcasing rectangle, circle, polygon, Bezier curve, and gradient simulation

Document Tools

PDF Watermark Tool

Apply document-level or page-level text/shape watermarks with rotation and transparency

Document Tools

PDF Storyboard Sheet

Generate storyboard sheets with thumbnail frames and description areas