Free PDF & Image Tools
No Upload, 100% Private
Compress, merge, resize, and convert your files directly in your browser. Your files never leave your device — completely free and private.
Compress PDF
Reduce your PDF file size for easy sharing and uploading. 100% free and private.
Merge PDF
Combine multiple PDF files into one document. Reorder as needed.
Compress Images
Reduce JPEG, PNG, and WebP file sizes while preserving visual quality.
Resize Image
Resize images to exact dimensions with presets for social media platforms.
Convert Image Format
Convert images between JPEG, PNG, WebP, and BMP formats instantly.
Split PDF
Extract specific pages or page ranges from a PDF document.
Rotate PDF
Rotate all or individual pages of a PDF document by 90, 180, or 270 degrees.
Delete PDF Pages
Remove specific pages from a PDF document quickly and easily.
Organize PDF
Drag and drop to reorder pages within a PDF document.
Watermark PDF
Add custom text watermarks to your PDF documents for branding or protection.
Crop PDF
Trim margins and adjust the visible area of PDF pages.
Sign PDF
Draw your signature and place it on any page of a PDF document.
PDF to Images
Convert each page of a PDF document into high-quality images.
Images to PDF
Combine multiple images into a single PDF document.
Protect PDF
Add password protection to your PDF documents to restrict access.
Why Choose SlimPDF?
SlimPDF offers a complete suite of free tools for working with PDFs and images. Unlike most online tools that require you to upload files to remote servers, SlimPDF processes everything locally in your browser. This means faster results, zero privacy risk, and no file size limits. Whether you need to compress a large PDF for email, merge multiple documents into one, resize photos for social media, or convert images between formats, SlimPDF has you covered.
Privacy by Design
Every file you process with SlimPDF stays on your device. Our tools use client-side JavaScript libraries like pdf-lib and the Canvas API to handle all operations directly in your browser. No files are ever transmitted to a server. This privacy-first approach means your sensitive documents, personal photos, and confidential files are never exposed to third parties. The tools even work offline once the page has loaded.
How It Works
Using SlimPDF is simple: select a tool, drag and drop your file, adjust settings if needed, and download the result. There is no account to create, no software to install, and no subscription to pay. SlimPDF works on any modern browser across desktops, tablets, and mobile devices. The entire process takes seconds.
Free Forever, No Strings Attached
SlimPDF is completely free with no hidden costs. There are no watermarks on your processed files, no daily limits on how many files you can process, and no premium tier locking features behind a paywall. We sustain the service through unobtrusive advertisements and keep the tools fast, reliable, and accessible to everyone around the world.
Frequently Asked Questions
What file formats does SlimPDF support?
SlimPDF supports PDF files for compression and merging, as well as all major image formats including JPEG, PNG, WebP, and BMP for compression, resizing, and conversion. You can freely convert between any of these image formats using our tools.
Is SlimPDF really free to use?
Yes, SlimPDF is completely free with no hidden costs, no subscriptions, and no usage limits. You can compress, merge, resize, and convert as many files as you need without creating an account or paying anything. The site is supported by non-intrusive advertising.
Is it safe? Are my files private?
Absolutely. All file processing happens entirely in your web browser using client-side JavaScript. Your files are never uploaded to any server, which means no one else can access them. Once you close or refresh the page, the processed data is gone from memory.
Do my files get uploaded to a server?
No. SlimPDF uses browser-based processing powered by libraries like pdf-lib and the HTML Canvas API. Your files stay on your device at all times. This architecture ensures maximum privacy and also means the tools work even with slow or no internet connection after the page loads.
Can I use SlimPDF offline?
Once the page has fully loaded in your browser, the core processing features work without an active internet connection. However, you do need an initial connection to load the page and its JavaScript libraries. For the best experience, we recommend a stable connection.