Merge, split, rotate, watermark, convert to images, add page numbers, and inspect PDF encryption — all in your browser. No upload, no account, no limit.
Drag and drop multiple PDFs, reorder them, and merge into one downloadable file. 100% client-side.
Upload a PDF and extract specific page ranges into separate downloadable files.
Rotate individual pages or all pages in a PDF by 90°, 180°, or 270°.
Stamp a custom text watermark on every page of a PDF. Control position, opacity, size and color.
Render each PDF page as a high-resolution PNG or JPEG image and download them individually.
Stamp page numbers on every page of a PDF. Choose position, format, and starting number.
Encrypt a PDF with a password to protect it, or remove password protection from an existing PDF.
Insert a signature, company logo, or any image into a PDF page. Resize and position visually.
Fill interactive PDF forms (AcroForms) safely in your browser. Supports text, checkboxes, and more.
Generate a clean, simple PDF document from text. Handles automatic text wrapping and pagination.
Most PDF utilities either require you to install heavy desktop software or upload sensitive documents to an unknown cloud server. Tool Studio's PDF tools take a different approach: everything runs directly in your browser using WebAssembly and pure JavaScript — no installation, no upload, no account.
We use pdf-lib for PDF editing operations (merge, split, rotate, watermark, page numbers) and PDF.js for rendering pages to images. Both are open-source libraries trusted by thousands of projects. Your files never leave your computer.
These tools are ideal for individuals, teams, and agencies who need quick, private PDF operations without committing to expensive SaaS subscriptions.