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Guides
- How to compress a PDF without ruining it
- How to merge PDFs in the right order, with no loss
- Split a PDF, extract pages or delete pages
- Protect a PDF with a password, or unlock it
- Turn photos and scans into a single PDF
- Convert a PDF to JPG or PNG images, or extract its photos
- Shrink an image's file size with no visible loss
- Resize and crop an image for the web, Instagram or YouTube
- JPG, PNG, WebP, SVG: which image format to choose and how to convert
- Extract text from an image or scanned PDF (OCR): a practical guide
- JSON: format, validate, minify and convert to CSV without errors
- Base64, URL encoding and JWT tokens: understand and decode
- MD5, SHA-256 and bcrypt hashes: verifying a file, storing a password
- Strong passwords: entropy, passphrases and data breaches
- QR codes: create one that scans, share Wi-Fi, read safely
- Mortgages and compound interest: understanding the calculations
- Percentages, VAT and discounts: the calculations everyone gets wrong
- Why process your files locally, and how to check it
- Text tools: count, change case, remove duplicates, compare and make slugs
PDF tools
- Merge PDF
- Split PDF
- Extract PDF Pages
- Delete PDF Pages
- Reorder PDF Pages
- Rotate PDF
- Compress PDF
- Repair a Damaged PDF
- JPG to PDF
- HTML to PDF
- PDF to JPG
- PDF to Markdown
- Edit PDF
- Add Page Numbers to PDF
- Add Watermark to PDF
- Crop PDF
- Protect PDF
- Unlock PDF
- Sign PDF
- Fill PDF Form
- Scan Documents to PDF
- OCR PDF
- Image OCR
- Compare Two PDFs
Images & Photos
Text & Writing
Calculators & Converters
- Length Converter
- Hours to Decimal Converter
- Percentage Calculator
- Scientific Calculator
- Rule of Three Calculator
- Loan & Mortgage Calculator
- Compound Interest Calculator
- VAT & Sales Tax Calculator
- BMI Calculator (Body Mass Index)
- Exact Age Calculator
- Date Difference Calculator
- Car Loan Calculator
- Personal Loan Calculator
- Printable Amortization Schedule
- Hourly to Annual Salary Calculator