Change PDF Page Size Instantly (A4, Letter, Legal, Custom)
Change the page size of any PDF to A4, Letter, Legal, A3, A5, Tabloid, or Executive. Choose how content is fitted — scale to fit, scale to fill, stretch, or centre. All processing runs in your browser. Nothing is uploaded.
How to Use PDF Page Size Changer
How to Use the PDF Page Size Changer:
Upload Your PDF: Click the upload area or drag and drop your PDF file. Files up to 50 MB are supported.
Choose a Target Page Size: Select the desired output size from the dropdown — A4, Letter, Legal, A3, A5, Tabloid, or Executive.
Select a Fit Mode:
- Scale to fit — scales content proportionally so it fits within the new page, adding thin margins if the aspect ratios differ. Best for most documents.
- Scale to fill — scales content proportionally to fill the new page; edges may be slightly cropped if aspect ratios differ.
- Stretch — stretches content to exactly fill the new page regardless of proportions. May distort text or images.
- Centre — places the original content centred on the new page without any scaling. Useful when changing from a slightly different size.
Match Source Orientation (optional): When checked, landscape source pages are given a landscape target page. Uncheck to always use the portrait dimensions of the target size.
Resize Pages: Click "Resize Pages". Each page is processed in your browser — no data is sent to any server.
Download: Click "Download Resized PDF" to save the result.
Frequently Asked Questions
Most Viewed Tools
TOTP Code Generator
Generate time-based one-time passwords from a TOTP secret key. Enter your base32 secret, choose a period and digit length, and get the current and next codes with a live countdown timer. Useful for testing and debugging 2FA integrations.
Use Tool →JSON to Zod Schema Generator
Generate Zod validation schema code from a JSON sample object. Infers z.string(), z.number(), z.boolean(), z.array(), z.object(), and z.null() types automatically. Handles nested objects, arrays of objects with optional field detection, and outputs copy-ready TypeScript with import and z.infer type alias.
Use Tool →JSONL / NDJSON Formatter
Format, validate, and inspect JSON Lines (JSONL) and NDJSON files. Validates each line individually, reports parse errors by line number, outputs compact JSONL or a pretty-print preview, and lets you download the cleaned file.
Use Tool →Secret and Credential Scanner
Scan pasted text, code, or config files for accidentally exposed API keys, tokens, passwords, and private keys. Detects 50+ secret types across AWS, GitHub, Stripe, OpenAI, and more — all client-side, nothing leaves your browser.
Use Tool →TLS Cipher Suite Checker
Check TLS protocol version compatibility and cipher suite strength ratings against current best practices. Supports IANA and OpenSSL cipher names — rates each suite as Strong, Weak, or Deprecated and explains why.
Use Tool →Password Entropy Calculator
Calculate the information-theoretic bit entropy of any password or API key. Detects character set pools automatically, shows the total number of possible combinations, and estimates crack time across five attack scenarios from rate-limited web logins to GPU cracking clusters.
Use Tool →TOML Config Validator
Validate TOML configuration file syntax and report errors with line numbers. Paste any TOML content — Cargo.toml, pyproject.toml, config.toml — and instantly see a green checkmark with key counts and structure stats, or a precise error message pointing to the exact line. Includes a collapsible JSON structure preview to confirm what was parsed.
Use Tool →Content Security Policy Generator
Build Content Security Policy headers interactively. Toggle directives like script-src, style-src, and img-src, select allowed source tokens, and add custom origins. Instantly outputs your CSP as an HTTP header, meta tag, Nginx directive, or Apache header.
Use Tool →Related Utility Tools
Word Counter
FeaturedCount words, characters, sentences, and reading time instantly
Use Tool →Unit Converter
FeaturedConvert between length, weight, and volume units instantly. Support for metric and imperial systems.
Use Tool →Temperature Converter
FeaturedConvert temperatures between Celsius, Fahrenheit, and Kelvin instantly with live conversion
Use Tool →Time Zone Converter
FeaturedConvert between time zones and see current or custom time across different parts of the world
Use Tool →Speed Converter
FeaturedConvert speeds between miles per hour (MPH), kilometers per hour (KPH), and knots instantly
Use Tool →Area Converter
FeaturedConvert areas between square feet, square meters, acres, hectares, and square yards instantly
Use Tool →Random Sentence Generator
Generate random grammatically correct sentences for creative writing, testing, and content creation.
Use Tool →Word to PDF
Convert Word documents (.docx) to PDF format instantly in your browser. Preserves text, headings, lists, and basic formatting.
Use Tool →Share Your Feedback
Help us improve this tool by sharing your experience