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PDFStack

Runs entirely in your browser

Every PDF Task,
One Simple Workspace

Convert, compress, organise, edit and sign PDF files without uploading them anywhere. Sixty-eight tools, no account, and each one honest about what it can do.

Merge PDFLocal processing
  • contract-signed.pdf12 pages · 1.4 MB
  • annex-a.pdf3 pages · 220 KB
  • schedule-of-fees.pdf2 pages · 96 KB
17 pages will be combined into one file.
tools, all working
68tools, all working
files uploaded, ever
0files uploaded, ever
automated tests
500automated tests
to use every tool
$0to use every tool

What Sets Us Apart

The things that make handling documents here quicker, safer, and less likely to surprise you.

Nothing Leaves Your Device

Every tool runs in the browser. There is no upload step and no server holding your document, which you can confirm in the network tab.

Honest About Limits

Each tool states what it cannot do. Compression tells you when it made a file larger, and hands the original back.

No Account, No Queue

Open a tool and use it. Nothing to sign up for, no waiting for a server, no daily allowance to run down.

Built To Be Checked

Five hundred tests cover the processing engines and the promises on these pages. Claims here are backed by code, not copy.

Simplify Your Workflow

Three steps, no account, and nothing happening until you ask for it.

  1. Choose a tool

    Sixty-eight of them, grouped by the job rather than the file format. Search by what you want to happen.

    Browse the tools
  2. Add your document

    Drag it in, browse for it, or paste from the clipboard. Nothing is processed until you press the button.

  3. Download the result

    Check it, then take it away as a PDF, an image, or a ZIP when there is more than one file.

Recent tasks
ToolDetailStatus
merge-pdf17 pagesReady
compress-pdf4.2 MB → 780 KBDone
ocr-pdf12 pagesReading

Built For Real Documents

The tools people reach for most, and the ones that usually need explaining.

Grouped By The Job,
Not The File Type

Nine categories covering everything from reordering pages to reading text off a scan. Search by what you want to happen, not what the tool is called.

Full tool list

The Tools People Reach For

Nine out of ten visits end at one of these.

Flexible Plans for Every Need

Only the free plan exists today. The others describe where this is going, and are labelled that way rather than sold as though they were ready.

Free

Every tool on the site, with sensible limits. This is what exists today.

$0no account needed

Start with a tool
  • All 55 tools
  • Up to 100 MB per file
  • Up to 20 files per batch
  • Up to 300 pages per document
  • ZIP downloads
  • No account, no sign-up
  • Nothing uploaded, nothing stored

Pro

Higher limits and conveniences for people doing this daily. Not built yet, the limits below are the same for everyone today.

$9per month

Register interest
  • Up to 300 MB per file
  • Up to 100 files per batch
  • Up to 1,000 pages per document
  • Signatures saved on your device
  • A history of recent tasks
  • Email support

Business

For teams needing shared limits and a written processing agreement. Needs accounts, which do not exist yet.

Custombilled annually

Contact sales
  • Team accounts and central billing
  • Admin controls
  • Custom limits
  • Shared tool presets
  • Priority support
  • Data processing agreement

All Your Questions, Answered

The things people ask most. The help centre covers the rest.

Nothing is uploaded, the file is read by the page itself. If it is being rejected, it is one of three things: the file is larger than the stated limit, the extension and content do not match (a .pdf that is really a .docx, for example), or the file is zero bytes because a download did not finish. The message on screen will say which.

Still stuck? Tell us what happened.

Guides

Written to answer the question rather than to rank for it.

All 20 guides →

Take Control of Your
Documents Today

Sixty-eight tools that run on your device. No account, no upload, and no guessing about what happened to your file.

Tools available
68Tools available
Files uploaded
0Files uploaded
In your browser
100%In your browser
Choose a tool