--- title: "Black and White Image Converter & Filters | PDFWix" url: https://www.pdfwix.com/photo-filters description: "Free black and white image converter and photo filters. Make photos grayscale, sepia or vivid and adjust brightness, contrast and saturation in your browser." lang: en --- Skip to content All tools (https://www.pdfwix.com/) # Black and White Image Converter & Photo Filters — Free Turn photos black and white, sepia, vivid, warm or cool, and fine-tune brightness, contrast and saturation. Free photo filters that run in your browser. Updated July 2026 · Reviewed by the PDFWix Team (https://www.pdfwix.com/about/team) Sometimes a photo just needs a different mood: a black-and-white portrait, a warm sepia tone for an old family picture, a brighter version of a dark indoor shot, or a punchier vivid look for a product photo. PDFWix Photo Filters applies one-click presets or your own brightness, contrast, saturation and warmth settings to a whole batch of images at once, entirely on your device. To make a photo black and white free: open PDFWix Photo Filters, add your images, click the Black & white preset (or High-contrast B&W), and click Apply filter. You can also adjust brightness, contrast, saturation and warmth before saving. 0 of 3 free conversions used today JPG, PNG, WebP, GIF or BMP — add several at once Your images are processed inside this browser tab and never uploaded. The originals on your device are left untouched. Want this in your History? Free account keeps your last 30 jobs (filename + tool only — never your files) so you can re-find them later. Create free account →: https://www.pdfwix.com/auth?tab=signup ## Common next steps Blur Image Blur or pixelate faces, number plates and private details in photos. https://www.pdfwix.com/blur-image Compress Image Shrink JPG, PNG and WebP photos to a smaller file size, even to an exact KB target. https://www.pdfwix.com/compress-image Grayscale PDF Convert a colour PDF to black and white to save ink and file size. https://www.pdfwix.com/grayscale-pdf 🔒 Processed in your browser · Never uploaded · 100% free ## How a good black-and-white conversion works The quick way to remove colour is to average red, green and blue equally, but that makes skies and greenery look muddy because the eye is far more sensitive to green than to blue. A proper grayscale conversion weights the channels by perceived brightness — roughly 30% red, 59% green and 11% blue — so a bright yellow flower stays bright and a deep blue sky stays dark, the way classic black-and-white film rendered them. Contrast is the other half. Colour photos rely on hue differences to separate subjects; once colour is gone, tones can blend together. That is why the High-contrast B&W preset adds contrast, and why the Contrast slider stays available with black and white. Brightness lifts shadows in dark indoor shots, saturation makes colours richer or more muted, and warmth shifts the balance towards golden or blue. ## How to apply a photo filter 1. 1 ### Add your images Drag in JPG, PNG or WebP photos — a whole batch works. 2. 2 ### Pick a preset Black & white, High-contrast B&W, Sepia, Vivid, Warm, Cool or Brighten. 3. 3 ### Fine-tune Adjust brightness, contrast, saturation and warmth with the sliders. 4. 4 ### Apply and download Click Apply filter. Files keep their original format and size. ## Tips for photo filters ### Add contrast to B&W Black and white photos often look flat — try High-contrast B&W or add +15 to +30 contrast. ### Brighten before sharpening Lift dark photos with Brightness rather than Contrast, which can crush shadows. ### Keep a copy Your original is never changed, but keep it if you might want the colour version later. ### Hide faces too Posting publicly? Blur Image (https://www.pdfwix.com/blur-image) hides faces and plates before you share. 7 one-click looks Presets 4 fine-tune sliders Adjustments 100% in your browser Processing Results measured on a sample of 500 PDFs across scanned documents, photo portfolios, and office reports. ## Which filter to use | Preset | Best for | What it changes | | --- | --- | --- | | Black & white | Portraits, documents | Removes colour using perceived brightness | | High-contrast B&W | Street, architecture | Grayscale plus +40 contrast | | Sepia | Old family photos, vintage | Warm brown monochrome tone | | Vivid | Products, food, travel | +40 saturation, +15 contrast | | Brighten | Dark indoor shots | +25 brightness | Quick guide to the PDFWix photo filter presets. ## Why use PDFWix to filter PDFs? Consistent filters make a set of photos look like they belong together. - **Batch in one pass.** Give a whole album, product range or social grid the same look in one click. - **Same result everywhere.** Pixel-level processing means the output is identical on iPhone, Android, Mac and Windows. - **No app to install.** Works in the browser — no account, no subscription, no watermark. - **Private.** Personal photos stay on your device; nothing is uploaded. Converting a document rather than a photo? Grayscale PDF (https://www.pdfwix.com/grayscale-pdf) turns a colour PDF black and white for cheaper printing. After filtering, shrink the files with Compress Image (https://www.pdfwix.com/compress-image) or add your name with Watermark Image (https://www.pdfwix.com/watermark-image). ## Common uses for filtering PDFs - Making black-and-white portraits and headshots - Giving old scanned family photos a warm sepia tone - Brightening dark indoor or evening photos - Matching the look of product photos for a shop - Preparing black-and-white images for print or newsletters ## Frequently asked questions ### How do I make a picture black and white online? Open PDFWix Photo Filters, add the picture, click the Black & white preset and then Apply filter. It is free and runs in your browser. ### What is the difference between grayscale and black and white? In everyday use they mean the same thing: an image made of shades of grey. True 1-bit black and white has only pure black and white pixels, which is rarely what people want for photos. ### Can I adjust brightness and contrast of an image? Yes. Use the Brightness and Contrast sliders, from −60 to +60, with or without a preset. ### Does filtering reduce quality? No visible loss. JPG and WebP are saved at 92% quality and PNG is lossless. ### Can I filter many photos at once? Yes. Add as many as you like; the same filter is applied to every image. ### Are my photos uploaded? No. Every pixel is processed inside your browser tab. ## More PDF tools ### Blur Image ### Compress Image ### Grayscale PDF ### Watermark Image Stamp your name or brand on photos — corner, centre or tiled. https://www.pdfwix.com/watermark-image ## Related PDF tools Blur Image: https://www.pdfwix.com/blur-image Compress Image: https://www.pdfwix.com/compress-image Grayscale PDF: https://www.pdfwix.com/grayscale-pdf Watermark Image: https://www.pdfwix.com/watermark-image Flip & Mirror Image: https://www.pdfwix.com/flip-image Merge PDF: https://www.pdfwix.com/merge-pdf ## Structured data ```json [ { "@context": "https://schema.org", "@type": "WebApplication", "@id": "https://www.pdfwix.com/photo-filters#app", "name": "Photo Filters — PDFWix", "applicationCategory": "MultimediaApplication", "applicationSubCategory": "PhotoApplication", "operatingSystem": "Any — runs in browser on Windows, macOS, Linux, iOS, Android", "browserRequirements": "Requires a modern web browser", "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD", "description": "100% free online browser tool" }, "aggregateRating": { "@type": "AggregateRating", "ratingValue": "4.6", "ratingCount": "2384", "bestRating": "5", "worstRating": "1" }, "description": "Free black and white image converter and photo filters. 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