# ToolField > Every tool, one field. ## Categories - [PDF Tools](https://www.toolfield.com/pdf-tools) - [Image Tools](https://www.toolfield.com/image-tools) - [Converters](https://www.toolfield.com/converters) - [Text Tools](https://www.toolfield.com/text-tools) - [Developer Tools](https://www.toolfield.com/developer-tools) ## Tools - [Merge PDF](https://www.toolfield.com/pdf-merge): Combine multiple PDF files into a single PDF, in the order you choose. - [Compress PDF](https://www.toolfield.com/compress-pdf): Reduce PDF file size with low, medium or high compression. - [Split PDF](https://www.toolfield.com/pdf-split): Split a PDF into separate files - one per page. - [Convert Image](https://www.toolfield.com/convert-image): Convert an image to JPG, PNG, WebP, GIF, BMP or TIFF. - [Compress Image](https://www.toolfield.com/compress-image): Reduce image file size by re-encoding at a chosen quality. - [Resize Image](https://www.toolfield.com/resize-image): Resize an image by width/height or percentage, keeping aspect ratio. - [Rotate Image](https://www.toolfield.com/rotate-image): Rotate an image by an angle and/or flip it horizontally or vertically. - [Crop Image](https://www.toolfield.com/crop-image): Crop an image to a rectangular region. - [Add Text to Image](https://www.toolfield.com/add-text-to-image): Add a text caption or watermark onto an image. - [Add Watermark](https://www.toolfield.com/watermark-image): Overlay a second image (logo/watermark) onto a base image. - [Image Effects](https://www.toolfield.com/image-effects): Apply a colour/photo effect: grayscale, sepia, invert, blur or sharpen. - [Unit Converter](https://www.toolfield.com/unit-convert) - [PDF to JPG](https://www.toolfield.com/pdf-to-jpg): Convert each PDF page to a JPG image. - [JPG to PDF](https://www.toolfield.com/jpg-to-pdf): Combine JPG/PNG images into a PDF - one combined file or one per image. - [PDF to Word](https://www.toolfield.com/pdf-to-word): Convert a PDF into an editable Word (.docx) document. - [Length Converter](https://www.toolfield.com/length-converter): Convert between metres, kilometres, miles, feet, inches and more. - [Weight Converter](https://www.toolfield.com/weight-converter): Convert between grams, kilograms, pounds, ounces and more. - [Temperature Converter](https://www.toolfield.com/temperature-converter): Convert between Celsius, Fahrenheit and Kelvin. - [Word Counter](https://www.toolfield.com/word-counter): Count words, characters, sentences, paragraphs and reading time. - [Case Converter](https://www.toolfield.com/case-converter): Convert text to UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case or kebab-case. - [Reverse Text](https://www.toolfield.com/reverse-text): Reverse text by characters, words or lines. - [Slugify](https://www.toolfield.com/slugify): Turn text into a clean, URL-friendly slug. - [Base64 Encode / Decode](https://www.toolfield.com/base64): Encode text to Base64 or decode Base64 back to text. - [URL Encode / Decode](https://www.toolfield.com/url-encode): Percent-encode text for URLs or decode it back. - [Markdown Preview](https://www.toolfield.com/markdown-preview): Write Markdown and see a live, sanitized HTML preview. - [JSON Path Finder](https://www.toolfield.com/json-path-finder): Explore JSON, click any value to get its path, and run path queries.