Which file types does Convert PDF to Black & White accept?

The drop area takes PDF. Files are read from your device in the browser, so the format has to be one a browser can decode — that is why the accepted list on this page is finite and honest rather than "everything".

What do I get back from Convert PDF to Black & White?

The result is PDF, offered as a download the moment the work finishes. Multiple results come back together rather than as fifty separate save dialogs.

Can I process several files at once?

Yes, up to 50 files in a batch, each no larger than 100 MB. Results come back together instead of one save dialog per file.

Is it safe to use for a document with personal details in it?

That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.

Convert PDF to Black & White

Pure 1-bit style black & white output.

Drag & drop your PDF here

or click to browse — .pdf · up to 1 files

Every page is re-rendered through a grayscale filter. The result is image-based, which also shrinks color scans considerably.

Add a PDF first.

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About Convert PDF to Black & White

Convert PDF to Black & White is here for making a document lighter without wrecking it: pure 1-bit style black & white output. It takes PDF and produces PDF. There is no account to open and nothing to wait in a queue for, because the work happens on your own machine.

The slow route to making a document lighter without wrecking it is installing something, making an account and uploading the file; this is the fast route.

How to use Convert PDF to Black & White in 3 steps

Start by dropping the PDF you want to work on; the limit is 100 MB per file.
Set the resampling settings for the images inside the file.
Press Convert PDF to Black & White and download the PDF result.

What you get with Convert PDF to Black & White

One job, done in the browser: pure 1-bit style black & white output.
Free to use, with no signup and no account
No watermark or logo added to your output
Works on desktop and mobile, no install

Convert PDF to Black & White: questions

Which file types does Convert PDF to Black & White accept?: The drop area takes PDF. Files are read from your device in the browser, so the format has to be one a browser can decode — that is why the accepted list on this page is finite and honest rather than "everything".
What do I get back from Convert PDF to Black & White?: The result is PDF, offered as a download the moment the work finishes. Multiple results come back together rather than as fifty separate save dialogs.
Can I process several files at once?: Yes, up to 50 files in a batch, each no larger than 100 MB. Results come back together instead of one save dialog per file.
Is it safe to use for a document with personal details in it?: That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.