# Guides

> Guides to cropping, type, layers, and the other tools in Photasium.

- [How to Crop a Photo in Photasium](https://photasium.com/guides/how-to-crop-a-photo.md): Crop a photo in the browser without uploading or creating an account. Open Crop in Photasium, set the box, and apply.
- [How to Add Text to a Photo in Photasium](https://photasium.com/guides/how-to-add-text-to-a-photo.md): Add text to a photo in the browser without uploading or creating an account. Open Text in Photasium, click the canvas, and style the layer.
- [How to Paint and Erase on a Photo in Photasium](https://photasium.com/guides/how-to-paint-and-erase-on-a-photo.md): Paint and erase on a photo in the browser without uploading or creating an account. Open Brush or Eraser in Photasium, set the size, and paint.
- [How to Heal and Clone in Photasium](https://photasium.com/guides/how-to-heal-and-clone.md): Heal a spot or clone pixels in the browser without uploading or creating an account. Open Heal in Photasium, paint, or Option-click a source.
- [How to Use Layers in Photasium](https://photasium.com/guides/how-to-use-layers.md): Use layers in the browser without uploading or creating an account. Stack photos, type, and groups in Photasium, then hide, lock, and reorder.
- [How to Adjust Brightness, Contrast, and Saturation in Photasium](https://photasium.com/guides/how-to-adjust-brightness-contrast-and-saturation.md): Adjust brightness, contrast, and saturation in the browser without uploading or creating an account. Open Adjustments in Photasium, preview, and apply.
- [How to Resize a Photo in Photasium](https://photasium.com/guides/how-to-resize-a-photo.md): Resize a photo in the browser without uploading or creating an account. Open Image Size in Photasium, set the pixels, and apply.
- [How to Fill an Area with Colour in Photasium](https://photasium.com/guides/how-to-fill-an-area-with-colour.md): Fill an area with colour in the browser without uploading or creating an account. Open Fill in Photasium, set the tolerance, and click.
- [How to Use Selections in Photasium](https://photasium.com/guides/how-to-use-selections.md): Use selections in the browser without uploading or creating an account. Draw with Marquee, pick colour with Wand, or trace with Lasso in Photasium.
- [How to Draw Shapes on a Photo in Photasium](https://photasium.com/guides/how-to-draw-shapes-on-a-photo.md): Draw shapes on a photo in the browser without uploading or creating an account. Open Shape in Photasium, pick a rectangle, ellipse, line, or arrow, and drag.
- [How to Draw a Gradient on a Photo in Photasium](https://photasium.com/guides/how-to-draw-a-gradient-on-a-photo.md): Draw a gradient on a photo in the browser without uploading or creating an account. Open Gradient in Photasium, pick linear or radial, and drag.
- [How to Dodge, Burn, and Sponge in Photasium](https://photasium.com/guides/how-to-dodge-burn-and-sponge.md): Dodge, burn, or sponge a photo in the browser without uploading or creating an account. Open Dodge in Photasium, pick a mode, and paint.
- [How to Blur and Sharpen a Photo in Photasium](https://photasium.com/guides/how-to-blur-and-sharpen-a-photo.md): Blur or sharpen a photo in the browser without uploading or creating an account. Open Blur in Photasium, pick a mode, and paint.
- [How to Remove a Background in Photasium](https://photasium.com/guides/how-to-remove-a-background.md): Remove a background in the browser without uploading or creating an account. Open Remove background in Photasium, set the edge, and apply.
- [How to Use a Layer Mask in Photasium](https://photasium.com/guides/how-to-use-a-layer-mask.md): Hide part of a layer in the browser without uploading or creating an account. Add a layer mask in Photasium, paint what stays visible, and keep the pixels.
- [How to Smudge a Photo in Photasium](https://photasium.com/guides/how-to-smudge-a-photo.md): Smudge a photo in the browser without uploading or creating an account. Open Smudge in Photasium, set the stroke, and drag.
- [How to Change the Canvas Size in Photasium](https://photasium.com/guides/how-to-change-the-canvas-size.md): Change the canvas size in the browser without uploading or creating an account. Open Canvas Size in Photasium, set the pixels and the anchor, and apply.
- [How to Use Noise, Vignette, and Pixelate in Photasium](https://photasium.com/guides/how-to-use-noise-vignette-and-pixelate.md): Add grain, darken the corners, or turn an area into blocks in the browser without uploading or creating an account. Open Noise, Vignette, or Pixelate in Photasium, set the sliders, and apply.
- [How to Pick a Colour from a Photo in Photasium](https://photasium.com/guides/how-to-pick-a-colour-from-a-photo.md): Pick a colour from a photo in the browser without uploading or creating an account. Open Picker in Photasium, click a pixel, and use that colour.
- [How to Use Posterize, Threshold, and Sepia in Photasium](https://photasium.com/guides/how-to-posterize-threshold-and-sepia.md): Flatten colours into fewer tones, turn a photo black and white by brightness, or shift it toward brown in the browser without uploading or creating an account. Open Posterize, Threshold, or Sepia in Photasium, set the slider, and apply.
- [How to Flip and Rotate a Photo in Photasium](https://photasium.com/guides/how-to-flip-and-rotate-a-photo.md): Flip or rotate a photo in the browser without uploading or creating an account. Open Flip or Rotate in Photasium, turn the canvas or one layer, and undo if you need the previous orientation.
- [How to Export PNG, JPEG, or WebP from Photasium](https://photasium.com/guides/how-to-export-png-jpeg-or-webp.md): Export PNG, JPEG, or WebP in the browser without uploading or creating an account. Open Export in Photasium, pick a format, and download.