The smarter way
to work with PDFs.
Edit, convert, merge, compress, sign and organize PDFs with powerful tools — then keep what you make in a Workspace and pick it up later, with your edits and version history still there.
- Browser tools need no account
- Every tool shows where it runs
- Works on any device
Drop a PDF to start
or click to browse · PDF files up to 50 MB
Every tool states where it runs
- tools ready
- 32
- run in your browser
- 18
- today
- $0
Ask your PDF anything.
We are building an assistant that reads a document and answers questions about it. It is not available yet — this is a preview of what 8 planned AI tools will do, so you can see where PDFDadi is heading before it ships.
- Summarize long documents into their key points
- Explain dense or technical passages in plain words
- Translate a PDF while keeping its layout
- Pull tables and figures out into a spreadsheet
Essential PDF tools
Everything for everyday document work — and each one tells you where it runs before you pick a file.
- Merge PDFCombine multiple PDF files into one document.Processing: Browser
- Split PDFExtract a page range or split a PDF into a new file.Processing: Browser
- Compress PDFReduce PDF file size with quality presets.Processing: Secure cloud
- PDF to WordConvert a PDF into an editable Word file (best effort).Processing: Secure cloud
- JPG to PDFTurn JPG images into a single PDF document.Processing: Browser
- Edit PDFRotate, delete and reorder pages. For text, images and signatures, open the full editor.Processing: Browser
- Protect PDFAdd a password and encrypt your PDF.Processing: Secure cloud
- OCR PDFMake scanned PDFs searchable with text recognition.Processing: Secure cloud
- PDF to JPGExport each PDF page as a JPG image.Processing: Secure cloud
- Rotate PDFRotate pages to the correct orientation.Processing: Browser
How PDFDadi works
Three steps from a file on your desk to a file you can use.
- 1
Choose your PDF
Drop a file in the hero or open a tool directly. No account needed to start.
- 2
Edit or convert it
Every tool says where it runs — your browser, or our servers when the job needs more.
- 3
Download, save or continue
Download and you are done. Or save it to a Workspace, with comments and version history kept.
Your all-in-one PDF Workspace
Most PDF sites hand you a download and forget you existed. Save a document to a Workspace instead and it keeps its folder, its comments and its version history.
- Folders, tags and projectsOrganised how you want, and findable by full-text search.
- A genuine PDF editorText, images, shapes, signatures, pages. No desktop install.
- Tabs and split viewSeveral documents open at once, two of them side by side.
- Sessions that survive the tab closingReopens tomorrow with the documents, tabs and layout you left.
A Workspace is free. Documents you save there stay until you delete or archive them.
Why choose PDFDadi
The difference between finishing a job and being able to pick it back up.
Version history
Saving a document from the editor into your Workspace keeps the version before it, so you can inspect an earlier one or restore it.
Autosave and recovery
Changes are saved as you work. If the tab closes unexpectedly, you are offered the unsaved work back.
Comments and outline
Threaded comments you can resolve, and an outline for finding your way around a long document.
Jobs you can watch
Server-side work reports progress while it runs and can be cancelled, instead of leaving you guessing.
Your privacy comes first
We would rather tell you exactly what happens to your file than promise something we cannot back up.
Stated before you start
Each tool shows where it runs — your browser or our servers — before you pick a file.
An account is optional
Browser tools work signed out. You only need one to keep documents in a Workspace.
Your Workspace, your call
Saved documents stay until you archive or delete them. Deleted items go to trash, where you can restore them.
Encrypted in transit
Anything sent to our servers travels over HTTPS, including uploads and downloads.
Where your file goes
- Browser
- Runs in your browser — the file is not sent to our servers for this tool.
- Secure cloud
- Uploaded over an encrypted connection and processed on our servers.
- Workspace
- Saved to your Workspace and kept until you delete or archive it.
Frequently asked questions
Where files are processed, what an account gets you, and what is free.
Yes. Every PDF tool available today is free to use, and a Workspace account is free to create. Paid plans are not available yet.
It depends on the tool, and each tool says so before you choose a file. Most editing and page tools run in your browser, so the file is not sent to our servers for that operation. Tools that need more than a browser can do — compression, OCR, Office conversion, password protection — upload your file over an encrypted connection, process it, and remove it from temporary processing storage once you have downloaded the result.
They are stored so you can come back to them: open them in the editor, keep them in folders, and restore earlier versions. They stay available until you delete or archive them. That is deliberate — a Workspace is for documents you want to keep, unlike a one-off tool run.
Not for the browser-based tools — open one and start straight away. An account is only needed for a Workspace, where documents, folders, version history and the editor's saved sessions live.
Merge, split, organize, rotate, crop, edit, annotate, sign, add page numbers and watermarks, and convert images to PDF all run in your browser. Compression, OCR, repair, password protection, unlocking, flattening and conversion to and from Office formats run on our servers. A few tools are still in development and are listed separately so it is clear what you can use today.
Yes. The editor handles text, images, shapes, highlights, signatures and annotations, with page organization, layers and full undo history — in the browser, with nothing to install.
Ready to simplify your PDF tasks?
Run any browser tool right now without signing up. Create a free Workspace when you want the document to still be there tomorrow.