Question 1

Are DimlyPDF tools completely free?

Accepted Answer

Yes. Every tool on DimlyPDF is completely free with no account, no sign-up, and no usage limits beyond the 100 MB per-file cap. There are no subscriptions or paywalls.

Question 2

Are my PDF files private and secure?

Accepted Answer

Yes. All processing happens locally in your browser using WebAssembly. Your files never leave your device and are never uploaded to any server. DimlyPDF has zero server storage.

Question 3

Will text remain selectable after converting a PDF to dark mode?

Accepted Answer

Yes. DimlyPDF uses MuPDF WebAssembly to rewrite color operators directly inside the PDF content streams. All text layers, hyperlinks, bookmarks, and metadata are untouched — text remains fully selectable, copyable, and searchable in the output PDF.

Question 4

What PDF tools does DimlyPDF offer?

Accepted Answer

DimlyPDF offers 7 free tools: PDF Dark Mode Converter, Compress PDF, Merge PDFs, Split PDF, PDF to JPG/PNG, Add Page Numbers, and Rotate PDF. All tools run entirely in your browser.

Question 5

What browsers does DimlyPDF support?

Accepted Answer

DimlyPDF works in any modern browser that supports WebAssembly — including Chrome, Firefox, Safari, and Edge on both desktop and mobile devices.

Question 6

Is there a file size limit?

Accepted Answer

Each file can be up to 100 MB. There are no limits on the number of files or operations.