OmniCalc Pro

Your premium all-in-one calculator solution for every need

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Financial

Health

Math

Conversion

Date

Health

BMI Calculator

Calculate your Body Mass Index to understand your weight status and health risks.

Height (cm)

Weight (kg)

Your BMI Result

BMI Value:

Category:

Finance

Loan Calculator

Calculate monthly payments, total interest, and amortization schedule.

Loan Amount ($)

Loan Term (years)

Interest Rate (%)

Loan Details

Monthly Payment:

Total Interest:

Total Payment:

Date

Age Calculator

Calculate your exact age in years, months, days, and even hours!

Birth Date

Current Date (optional)

Your Age

Conversion

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin scales easily.

Temperature Value

From Celsius (°C) Fahrenheit (°F) Kelvin (K)

To Celsius (°C) Fahrenheit (°F) Kelvin (K)

Converted Temperature

Math

Percentage Calculator

Calculate percentages, increases, decreases, and differences.

Calculation Type What is X% of Y? X is what percent of Y? X increased by Y% is what? X decreased by Y% is what?

Value X

Value Y

Result

Finance

Mortgage Calculator

Calculate monthly payments, total interest, and amortization.

Home Value ($)

Down Payment ($)

Loan Term (years) 30 years 20 years 15 years 10 years

Interest Rate (%)

Mortgage Details

Monthly Payment:

Total Interest:

Total Cost:

Health

Calorie Calculator

Estimate your daily calorie needs based on your activity level.

Gender Male Female

Age (years)

Height (cm)

Weight (kg)

Activity Level Sedentary (little or no exercise) Lightly active (light exercise 1-3 days/week) Moderately active (moderate exercise 3-5 days/week) Very active (hard exercise 6-7 days/week) Extra active (very hard exercise & physical job)

Daily Calorie Needs

Maintenance:

Mild Weight Loss:

Weight Gain:

Finance

Tip Calculator

Calculate tip amounts and split bills with friends easily.

Bill Amount ($)

Tip Percentage 10% - Standard 15% - Good 18% - Great 20% - Excellent Custom

Custom Tip Percentage

Number of People

Tip Details

Tip Amount:

Total Bill:

Per Person:

OmniCalc Pro

Your premium calculator solution for all needs

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PDF Tools Pro

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Your Complete PDF Solution

Merge, split, compress, convert and more - all your PDF needs in one place. 100% free, secure and easy to use.

Explore Tools

Our Powerful PDF Tools

All tools are completely free to use with no watermarks or limits. Process your files securely in your browser.

Merge PDF

Combine multiple PDF files into one document in seconds.

Split PDF

Extract pages or split your PDF into multiple files.

Compress PDF

Reduce file size while maintaining quality.

PDF to Word

Convert PDF files to editable Word documents.

Word to PDF

Convert Word documents to PDF files.

PDF to JPG

Convert PDF pages to high-quality JPG images.

JPG to PDF

Convert JPG images to a single PDF document.

Protect PDF

Add password protection to your PDF files.

Why Choose PDF Tools Pro?

Our platform offers the most comprehensive set of PDF tools available online, with powerful features that make document management effortless.

100% Secure

All processing happens in your browser - your files never leave your computer.

Lightning Fast

Process files in seconds with our optimized algorithms.

No Limits

No file size limits, no watermarks, no registration required.

Mobile Friendly

Works perfectly on all devices - desktop, tablet and mobile.

How It Works

Using our PDF tools is quick and easy. Just follow these simple steps:

1

Select Your Tool

Choose from our wide range of PDF utilities to find the one that fits your needs.

2

Upload Files

Add your PDF or other files by dragging and dropping or browsing your computer.

3

Customize Options

Adjust settings like page ranges, compression level, or output format.

4

Process & Download

Click the process button and download your file when ready.

What Our Users Say

Thousands of users trust PDF Tools Pro for their document needs every day.

"This is by far the best free PDF toolset I've found online. The merge tool saved me hours of work!"

Sarah Johnson

Marketing Manager

"I use the PDF to Word converter weekly for my legal documents. Perfect results every time with no formatting issues."

David Chen

Attorney

"As a student, I appreciate the free tools that help me organize my study materials. The split PDF feature is my favorite."

Emily Rodriguez

University Student

Frequently Asked Questions

Find answers to common questions about our PDF tools.

Is PDF Tools Pro really free to use?

Yes, all our tools are completely free to use with no hidden charges. There are no watermarks, file size limits, or registration requirements.

Are my files secure when using your tools?

Absolutely. All file processing happens directly in your browser - your documents never leave your computer and are never uploaded to our servers.

What file formats do you support?

We support PDF, Word (DOC/DOCX), Excel (XLS/XLSX), PowerPoint (PPT/PPTX), JPG, PNG, and TIFF files depending on the tool you're using.

Is there a limit to the number of files I can process?

No, you can process as many files as you need. Some tools may have practical limits based on your device's memory and processing power.

Do you store any of my files?

No, we don't store any of your files. Once you close your browser tab, all traces of your documents are completely removed.

PDF Tools Pro

Your complete solution for all PDF needs. Free, secure and easy to use tools for everyone.

Popular Tools

• Merge PDF
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• PDF to Word
• Word to PDF

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Merge PDF

Combine multiple PDF files into a single document. Reorder pages as needed before merging.

Upload PDF Files

Drag & drop your PDF files here or click to browse

Select Files

Merge Options

Merge in upload order

Merge in alphabetical order

Your merged PDF is ready!

Click the button below to download your document.

Download Merged PDF

Split PDF

Extract specific pages or split your PDF into multiple documents.

Upload PDF File

Drag & drop your PDF file here or click to browse

Select File

Split Method

Extract page range

Split every X pages

Separate all pages

Page Range

Enter the page numbers or ranges you want to extract (e.g., 1, 3-5, 7)

Split Every

Split the document every X pages

Your split PDF is ready!

Click the button below to download your document(s).

Download Split PDF

Compress PDF

Reduce PDF file size while maintaining good quality.

Upload PDF File

Drag & drop your PDF file here or click to browse

Select File

Compression Level

Low (Best quality)

Medium (Recommended)

High (Smaller file)

Your compressed PDF is ready!

Download Compressed PDF

PDF to Word

Convert PDF files to editable Microsoft Word documents.

Upload PDF File

Drag & drop your PDF file here or click to browse

Select File

Output Format

DOCX (Microsoft Word 2007+)

DOC (Microsoft Word 97-2003)

Your Word document is ready!

Click the button below to download your file.

Download Word File

Word to PDF

Convert Microsoft Word documents to PDF files.

Upload Word File

Drag & drop your Word file here or click to browse

Select File

Your PDF is ready!

Click the button below to download your file.

Download PDF

PDF to JPG

Convert PDF pages to high-quality JPG images.

Upload PDF File

Drag & drop your PDF file here or click to browse

Select File

Conversion Options

Convert all pages to single JPG images

Convert all pages and download as ZIP

Image Quality

High Quality (300 DPI) Medium Quality (150 DPI) Low Quality (72 DPI)

Your JPG images are ready!

Click the button below to download your file(s).

Download JPG

JPG to PDF

Convert JPG images to a single PDF document.

Upload JPG Files

Drag & drop your JPG files here or click to browse

Select Files

Page Size

A4 (210 × 297 mm) Letter (8.5 × 11 in) Legal (8.5 × 14 in) Auto (Match image size)

Page Orientation

Portrait

Landscape

Margin

No margin Small margin Medium margin Large margin

Your PDF is ready!

Click the button below to download your document.

Download PDF

Protect PDF

Add password protection to your PDF files to prevent unauthorized access.

Upload PDF File

Drag & drop your PDF file here or click to browse

Select File

Password Protection

Require password to open

Require password to edit

Password

Minimum 6 characters. Remember this password as it cannot be recovered.

Your protected PDF is ready!

Click the button below to download your document.

Download Protected PDF