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Check PDF safety

Check a PDF for hidden scripts, actions that run on opening, attached files and suspicious links before you open it.

Select a PDF file

or drop them anywhere on this page

Processed on your device. Never uploaded.

1

Add your files

Choose or drop a file from your device.

2

Adjust the options

Set the options in the side panel, or keep the defaults.

3

Download the result

Save it, or send it straight on to another PaperWingPDF tool.

About Check PDF safety

Check PDF safety reads the structure of a PDF and tells you, in plain words, whether it contains JavaScript, actions that run as soon as it opens, commands that start programs, attached files (and whether any of them can run as a program), forms that send data to a website, suspicious links, hidden layers and earlier saved versions. Nothing in the file is run or displayed while it is checked, and the file never leaves your device.

Why use PaperWingPDF

  • Private by design Files are processed in this tab with JavaScript. Nothing is sent to a server, so contracts and medical records stay with you.
  • No queues, no waiting There is no upload step, so a 50-page merge finishes about as fast as your device can read the files.
  • Chain your tools Finished merging? Send the result straight to Compress, Sign or Page numbers without downloading in between.
  • Works offline, installs as an app Open a tool once and it keeps working without internet. Install PaperWingPDF to open PDFs straight from your computer.

Frequently asked questions

Is Check PDF safety free?

Yes. Check PDF safety is free to use, with no sign-up, no watermark and no daily limit.

Are my files uploaded to a server?

No. PaperWingPDF processes your files inside your browser, on your own device. They are never uploaded, and they are cleared from memory when you close the tab.

Does it work on my phone?

Yes. PaperWingPDF works in any modern browser on Windows, Mac, Linux, Android and iPhone, with nothing to install.

Is there a file size limit?

Each file can be up to 300 MB. Very large files depend on your device's memory, so a computer handles them faster than a phone.

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