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Welcome to ЯR RAJZSKY BOOK

Professional toolkit for PDF, Image, Resizer, Protein & Calculators – now with even more tools like split, compress, loan & mortgage calculators.

All Tools

Choose a category and start using instantly

PDF to JPG

Convert PDF pages to high‑quality JPG images.

JPG to PDF

Combine one or more JPG images into a single PDF.

PDF to Text

Extract text content from any PDF document.

Merge PDF

Combine multiple PDF files into one document.

Split PDF

Split a PDF into separate files by page range.

Compress PDF

Reduce PDF file size by removing metadata and optimising.

PNG to JPG

Convert PNG images to JPG format with adjustable quality.

JPG to PNG

Convert JPG images to PNG with transparency support.

PNG to WebP

Convert PNG to modern WebP format for smaller size.

JPG to WebP

Convert JPG to WebP for faster loading websites.

Resize by Dimensions

Set exact width & height for your images.

Resize by Percentage

Scale your image up or down by percentage.

Preset Sizes

Quickly resize to common social media dimensions.

Daily Protein Intake

Calculate your recommended daily protein based on weight & activity.

Protein Per Meal

Split your daily protein across meals evenly.

Protein Quality Score

Estimate protein quality based on amino acid profile (PDCAAS).

📊 Basic Calculators

10 tools
BASIC

BMI Calculator

Calculate your Body Mass Index based on height and weight.

BASIC

Age Calculator

Find your exact age in years, months, and days.

BASIC

Unit Converter

Convert between length, mass, and temperature units.

BASIC

Currency Converter

Live exchange rates (powered by API).

BASIC

EMI Calculator

Calculate monthly EMI, total payment, and total interest.

BASIC

Loan Calculator

Calculate monthly payment, total interest, and total payment.

BASIC

Mortgage Calculator

Estimate monthly mortgage payments with taxes & insurance.

BASIC

Discount Calculator

Find the final price after applying a discount percentage.

BASIC

Tip Calculator

Calculate tip amount and total bill per person.

🔬 Scientific Converters

6 tools
SCIENTIFIC

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin.

SCIENTIFIC

Weight / Mass Converter

Convert between kg, g, lb, oz, and tons.

SCIENTIFIC

Volume Converter

Convert between liters, mL, gallons, quarts, pints, cups.

SCIENTIFIC

Speed Converter

Convert between km/h, mph, m/s, and knots.

SCIENTIFIC

Data Storage Converter

Convert between B, KB, MB, GB, TB, PB.

SCIENTIFIC

Pressure Converter

Convert between Pa, kPa, bar, psi, atm.

🏪 Commercial Calculators

9 tools
COMMERCIAL

GST Calculator

Add or remove GST from any amount.

COMMERCIAL

Profit / Loss Calculator

Calculate profit/loss and percentage from cost & selling price.

COMMERCIAL

Markup / Margin Calculator

Calculate markup, margin, and selling price from cost.

COMMERCIAL

Sales Tax / VAT Calculator

Calculate total price including tax or tax amount.

COMMERCIAL

Commission Calculator

Calculate commission amount based on sale and rate.

COMMERCIAL

ROI Calculator

Calculate Return on Investment (ROI) percentage.

COMMERCIAL

CAGR Calculator

Compound Annual Growth Rate from start, end, and periods.

COMMERCIAL

SIP Calculator

Estimate future value of monthly SIP investments.

COMMERCIAL

FD Calculator

Calculate maturity amount for fixed deposit investments.

🧮 Mathematic Calculators

4 tools
MATHEMATIC

Percentage Calculator

Find percentage, or value from percentage.

MATHEMATIC

Ratio Simplifier

Simplify a ratio (e.g., 12:8 → 3:2).

MATHEMATIC

Square Root Calculator

Calculate the square root of any number.

MATHEMATIC

Exponent Calculator

Calculate base raised to an exponent (power).

❓ Frequently Asked Questions

How are the calculators organized?
All calculators are grouped into four clear sections under the "Calculators" tab: Basic Calculators (BMI, Age, EMI, Loan, etc.), Scientific Converters (Temperature, Weight, Volume, etc.), Commercial Calculators (GST, Profit/Loss, ROI, SIP, etc.), and Mathematic Calculators (Percentage, Ratio, Square Root, Exponent).
How do I use the Mathematic calculators?
Go to the "Calculators" tab, scroll to the "Mathematic Calculators" section. You'll find tools for percentage, ratio simplification, square root, and exponent calculations. Enter your values and click the button.
What commercial calculators are available?
We offer GST, Profit/Loss, Markup/Margin, Sales Tax, Commission, ROI, CAGR, SIP, and FD calculators – all in the "Commercial Calculators" section.
How do I split a PDF?
Go to the PDF tab, select "Split PDF", upload your file, enter the page range (e.g., 1 to 3), and click "Split PDF". A new PDF with only those pages will be downloaded.
Are my files stored on your server?
No! All processing is done entirely in your browser. Your files never leave your device, ensuring complete privacy and security.
How accurate are the financial calculators?
They use standard financial formulas and provide close estimates. Always consult a financial advisor for official figures.

📖 How to Use All Multi Tools

1

Choose a Tool

Click on any tab — PDF Tools, Image Tools, Resizer Tools, Protein Calc, or Calculators — to explore the available tools.

2

Upload or Input Data

For file‑based tools, upload your document or image. For calculators, enter the required values.

3

Click & Get Results

Press the action button and wait a moment. Your result will appear instantly in the result box below.

4

Download or Copy

For conversions, your file will be downloaded automatically. For calculations, you can copy the result.