Free PDF Tools Online

PDF tools that run on your computer — merge, compress, split, rotate, convert. Nothing uploads. Works on bad wifi or no wifi.

Work with PDFs without uploading them. Merge, split, compress, rotate, add page numbers, add watermarks, protect, and sign documents directly in your browser — every operation runs locally on your computer. No server round-trips, no account required, no artificial size caps imposed by an upload step. Files open, get processed, and save back to your computer without touching any outside system. The full list of PDF utilities is below.

Convert

PDF Converter

Convert between PDF and image formats right in your browser. JPG to PDF, PNG to PDF, WebP to PDF, PDF to JPG, PDF to PNG.

PDF to Text

Extract all text content from a PDF — right in your browser. Copy to clipboard or download as a .txt file.

Edit

Merge PDF

Combine multiple PDF files into one — right in your browser. Drag to reorder, then download your merged PDF.

Split PDF

Extract specific pages from a PDF — right in your browser. Select page ranges and download as a new PDF.

Compress PDF

Reduce PDF file size while maintaining quality — right in your browser. See the compression ratio instantly.

Rotate PDF

Rotate PDF pages 90°, 180°, or 270° — right in your browser. Rotate individual pages or the whole document.

Reorder PDF Pages

Rearrange pages in a PDF by dragging thumbnails — right in your browser. Download the reordered PDF instantly.

Remove PDF Pages

Remove pages from a PDF — right in your browser. Click page thumbnails to mark them for removal and download the result.

Flatten PDF

Flatten form fields and annotations in a PDF — right in your browser. See before and after file sizes.

Annotate

Add Page Numbers

Add page numbers to any PDF — right in your browser. Choose position, font size, and starting number.

Add Watermark

Add a text watermark to every page of a PDF — right in your browser. Customize font size, opacity, rotation, and color.

Sign PDF

Add your signature to any PDF — right in your browser. Draw, type, or upload a signature image, place it on any page, and download.

Secure

Unlock PDF

Remove password protection from a PDF — right in your browser. Enter the password, unlock, and download the unprotected file.

Protect PDF

Add password protection to a PDF — right in your browser. Set a password and download the encrypted file.

Frequently asked questions

Do my PDFs ever leave my device?: No. Every PDF tool on OnDevice runs inside this browser tab. Your file is opened, processed, and saved back on your computer — nothing is transmitted.
Why does the first use take a moment to load?: The browser downloads the PDF engine once, then caches it. Subsequent uses are instant even if you reload the page or go offline.
Can I batch-process multiple PDFs at once?: Yes — drop multiple PDFs into the merge, compress, or split tools and they all process locally on your computer.