Every PDF tool
you'll ever need
Merge, split, compress, convert, protect, annotate and more — all powered by Dudle's document engine. No watermarks. No limits. No sign-up.
…or drop a file anywhere — and Folio will pick it up from there.
AI Assistant
Chat with your PDFs, summarise, extract and analyse — your AI document workspace.
AIAI Templates
Generate fillable PDF templates with AI. NDAs, invoices, contracts — instantly.
AITranslate PDF
Translate a PDF and keep its layout — images, tables and form fields.
AIOCR PDF
Convert scanned PDFs and handwriting to searchable text with Tesseract.
Then take it to Studio.
Chat with the document, summarise it, build a quiz from it — the AI half of Dudle starts where the tools finish.
Open StudioFree online PDF tools — convert, edit, sign and organise
23 tools, one page
Dudle bundles 23 PDF tools into one page: merge and split documents, compress them for email, convert to and from Word, Excel, PowerPoint and images, add watermarks, sign, redact, translate and run OCR on scans. Every tool works in the browser — there is nothing to install and no account to create.
Search by what you need
Search the toolkit by what you want to do rather than what the tool is called. Type “merge”, “compress” or “sign” into the bar above and the matching tools surface instantly; or drop a file anywhere on this page and we will pick the right one for its format.
Private by default
Files are processed on our servers and deleted automatically once they are an hour old, and nothing you upload is used to train anything. Individual uploads can be up to 50 MB. The AI assistant's chat features run on a monthly allowance on the free plan; the conversion, editing and organising tools are unmetered.
Frequently asked questions
Are Dudle's PDF tools free?
Yes. Every conversion, editing and organising tool on this page is free to use with no sign-up and no watermark on the output. Only the AI assistant's chat features draw on a monthly allowance on the free plan.
What happens to the files I upload?
They are processed for your session only and deleted from our servers automatically once they are an hour old. We do not share them, and we do not use them to train models.
Is there a file size limit?
Individual uploads can be up to 50 MB. If a PDF is larger than that, run it through the compress tool first — it usually brings a text-heavy document well under the limit.
Do I need to create an account?
No. The PDF tools work without signing in. An account only adds saved documents, workspaces and a higher AI allowance.
Do I need to install Adobe Acrobat or any desktop software?
No. Everything runs from this page in your browser, on desktop, tablet or phone — there is no download, plugin or desktop install involved.