About

WrenPDF is a set of PDF and file tools built so that anyone can get everyday document work done without creating an account and without handing their files to a stranger.

Why no server?

You should not have to upload a contract, an invoice or an ID scan to an unknown server just to merge or compress it. Modern browsers can do this work on their own. In WrenPDF, every operation runs on your device; heavy jobs run in a separate Web Worker so the page stays responsive while it works.

What that means for you

• No upload wait: large files start processing immediately.
• No file size quota or daily limit set by us. The only limit is your device's memory.
• No account, no watermark, no trial that turns into a subscription.
• Once the page has loaded, most tools keep working offline.

Open source we build on

• pdf.js (Mozilla): reading and rendering PDFs
• pdf-lib: merging, splitting, watermarking
• jsPDF and html2canvas: creating PDFs from HTML and images
• mammoth: reading Word (.docx) files

Contact

Ideas, bug reports and partnerships: hello@wrenpdf.com