PDF Tools

Convert PDF to Grayscale Online

Create a grayscale copy of a color PDF for black-and-white printing, reading, or review. Choose a file, set the image quality, and download your converted PDF.

Browser-based conversion · Up to 50 MB · Up to 100 pages

PDF workspace 50 MB maximum · 100 pages maximum

Choose a PDF file PDF Choose a PDF or drop it here Your selected file is processed in this browser.

No file selected.

Image quality Standard — smaller file High — more detail

The conversion code does not intentionally upload your PDF. PDF.js and jsPDF are downloaded from public CDNs to run the conversion.

Choose a PDF file to begin. The output is rasterized, so keep your original PDF.

Important: This tool turns each PDF page into a grayscale image and assembles those images into a new PDF. Selectable text, hyperlinks, form fields, bookmarks, annotations and accessibility information may not be preserved. Output files can be larger or less sharp. Keep the original file.

How to convert a PDF to grayscale

1. Choose a PDF file from your device or drop it into the file area.
2. Select Standard or High image quality.
3. Click Convert PDF to grayscale and keep the page open while the progress bar runs.
4. Download the converted PDF and review several pages before printing or sharing.

What this tool does

The converter uses PDF.js to render each page, converts the page pixels to grayscale, and uses jsPDF to assemble a downloadable document. It is designed for print and review copies, not for preserving interactive PDF features.

Privacy and file handling

The page code processes the chosen PDF locally in the browser and does not intentionally send the selected file to a server. The required PDF.js and jsPDF libraries load from public CDNs. Avoid sensitive files unless you have reviewed these dependencies and are comfortable with them.

Troubleshooting

• If the libraries cannot load, refresh the page and check your connection.
• If conversion runs out of memory, try a smaller PDF, fewer pages, or Standard quality.
• If a PDF is password-protected or damaged, unlock or repair it before converting.

Related tools

PDF to Markdown Converter Image to Text Converter Word to Markdown Converter

For best results

Try a few representative pages first. Check page orientation, contrast, fine text and images in the downloaded file before using it for printing or distribution.

Frequently Asked Questions

Answers to common questions about converting PDFs to grayscale.

What does Convert PDF to Grayscale Online do?

It renders each PDF page into a grayscale image and combines those images into a new PDF file that you can download.

How do I convert a PDF to grayscale?

Choose a PDF, select your preferred image quality, click Convert PDF to grayscale, and wait until the conversion finishes and the download starts.

Will the grayscale PDF be smaller?

Not always. The converter embeds page images, so the result may be larger or less sharp than the original PDF, especially when the source contains many images.

Will searchable text, links and forms be preserved?

No guarantee. Rasterizing a page can remove selectable text, hyperlinks, forms, annotations, bookmarks and accessibility information. Keep your original PDF.

Is my PDF uploaded to a server?

The page's conversion code does not intentionally upload the selected PDF; processing is performed in the browser. The PDF.js and jsPDF libraries are loaded from public CDNs, so review those dependencies before processing sensitive documents.