World's simplest online signature to stamp converter. Just upload a scanned image of your handwritten signature (or a photo of a document with your signature) into this tool, select the signature area, and you'll instantly get a digital stamp of the signature in the output area (in PNG format). You can also choose the stamp impression's shape and ink color, border's style and color, digital quality, rotation angle, and make it translucent for pasting on top of text in documents. Free, quick, and very powerful. Created with love by team Browserling.
World's simplest online signature to stamp converter. Just upload a scanned image of your handwritten signature (or a photo of a document with your signature) into this tool, select the signature area, and you'll instantly get a digital stamp of the signature in the output area (in PNG format). You can also choose the stamp impression's shape and ink color, border's style and color, digital quality, rotation angle, and make it translucent for pasting on top of text in documents. Free, quick, and very powerful. Created with love by team Browserling.
This online tool lets you turn your handwritten signature into a digital stamp. The input signature can be an existing PNG image of your signature, a quick photo, or a scanned version. The output stamp is always a PNG file, as it's the most widely supported format, and it can also be made transparent. The tool is especially useful if you frequently need to sign electronic documents such as PDFs, contracts, or formal letters. By converting your signature into a reusable stamp, you can streamline your workflow and save time with every document you sign. After uploading your signature to the tool, you can select the area containing the signature using a rectangular or oval shape, making it easy to isolate and convert the right part of the signature. You can make the stamp bigger or smaller by resizing the shape. The signature can be exported as a monochrome (single-tone) stamp, a duotone (two-tone) stamp, or even a tritone (three-tone) stamp for more color variation. You can control the number of colors in the tool options. If you only set the ink color and leave the background color and border color blank, then the stamp will be monochrome. If you also set the background color, then the stamp will be duotone. And if you set all three colors – ink, background, and border, then the stamp will be tritone. All colors support the alpha channel, which lets you make them transparent. You can change the contrast setting (from 0% to 200%) to make the signature clearer before it's turned into a stamp. If your signature is light or written in faint ink, increasing the contrast will make the lines look darker and thicker in the final stamp. You can use dithering to make the stamp look more like it was made with real ink on paper. This effect adds small dots to smooth out stroke transitions and resemble the texture of printed or stamped ink. You can also control the ink strength and rotate the imprint to any angle. Finally, you can enclose the signature in a border that matches the chosen crop shape: rectangular, rectangular with rounded corners, square, square with rounded corners, oval, or circular. For the border, you can also select its thickness, style, and color. Png-abulous!
This online tool lets you turn your handwritten signature into a digital stamp. The input signature can be an existing PNG image of your signature, a quick photo, or a scanned version. The output stamp is always a PNG file, as it's the most widely supported format, and it can also be made transparent. The tool is especially useful if you frequently need to sign electronic documents such as PDFs, contracts, or formal letters. By converting your signature into a reusable stamp, you can streamline your workflow and save time with every document you sign. After uploading your signature to the tool, you can select the area containing the signature using a rectangular or oval shape, making it easy to isolate and convert the right part of the signature. You can make the stamp bigger or smaller by resizing the shape. The signature can be exported as a monochrome (single-tone) stamp, a duotone (two-tone) stamp, or even a tritone (three-tone) stamp for more color variation. You can control the number of colors in the tool options. If you only set the ink color and leave the background color and border color blank, then the stamp will be monochrome. If you also set the background color, then the stamp will be duotone. And if you set all three colors – ink, background, and border, then the stamp will be tritone. All colors support the alpha channel, which lets you make them transparent. You can change the contrast setting (from 0% to 200%) to make the signature clearer before it's turned into a stamp. If your signature is light or written in faint ink, increasing the contrast will make the lines look darker and thicker in the final stamp. You can use dithering to make the stamp look more like it was made with real ink on paper. This effect adds small dots to smooth out stroke transitions and resemble the texture of printed or stamped ink. You can also control the ink strength and rotate the imprint to any angle. Finally, you can enclose the signature in a border that matches the chosen crop shape: rectangular, rectangular with rounded corners, square, square with rounded corners, oval, or circular. For the border, you can also select its thickness, style, and color. Png-abulous!
In this example, we upload Thomas Jefferson's signature on a transparent background and convert it into a digital PNG stamp. To make it look like a traditional rubber stamp, we add a rectangular border around it and make the corners rounded by setting the corner radius value to 80 pixels. We also include padding around the stamp for better spacing. The ink strength is reduced to 70%, adding natural-looking gaps and imperfections in the imprint. The final result appears aged and slightly worn, just like a signature that's been stamped many times. (Source: Wikipedia.)
This example turns a photo of Jeanne d'Arc's signature (written on an aged parchment) into a round digital seal. To create it, the seal's shape is set to circular, and the circle is carefully positioned so that it's centered around the signature. A 12-pixel-wide border is added to give the seal a bold and official appearance. The ink aging value is set to 75%, giving it a more historical feel. (Source: Wikipedia.)
In this example, we're working with a scanned version of Frida Kahlo's signature, written on textured paper. To keep the paper's details visible, we activate the dithering effect. This effect creates a dotted texture on the stamp that helps preserve the paper's look. We lower the contrast to 50% so the background texture stays clear in the final stamp. The stamp is shaped as a rectangle with a wavy border around it for extra style. The ink density is set to 80%, and the stamp is rotated 10 degrees counterclockwise to give it a hand-placed feel. To make it stand out even more, we use two different colors: one for the border and one for the signature ink. (Source: Wikipedia.)
Edit a PNG in your browser.
Compare two or more PNG images.
Convert a PNG image to an AV1 image (AVIF).
Convert an AV1 image (AVIF) to a PNG image.
Convert a PNG image to a High Efficiency Image File (HEIF).
Convert a Hide Efficiency Image File (HEIF) to a PNG image.
Convert a PNG image to an ICO icon.
Convert a PNG image to a TIFF image.
Convert a TIFF image to a PNG image.
Convert a PNG image to a PIK image.
Convert a PIK image to a PNG image.
Convert a PNG image to a PPM image.
Convert a PPM image to a PNG image.
Convert a PNG image to a BPG image.
Convert a BPG image to a PNG image.
Convert a PNG image to a FLIF image.
Convert a FLIF image to a PNG image.
Convert a PNG image to a Paint.net file.
Convert a Paint.net file to a PNG image.
Convert a PNG image to a Photoshop file.
Convert a Photoshop file to a PNG image.
Convert a PNG image to an SVG image.
Convert a PNG image to an PDF document.
Convert a PDF document to a PNG image (or multiple images).
Convert a PNG image to an EPS file.
Convert an EPS file to a PNG image (or multiple images).
Convert a PNG image to a JFIF image.
Convert a JFIF image to a PNG image.
Convert a PNG image to raw RGB values.
Convert RGB values to a PNG image.
Convert a PNG image to raw BGR values.
Convert BGR values to a PNG image.
Convert a PNG image to raw RGBA values.
Convert RGBA values to a PNG image.
Convert a PNG image to raw BGRA values.
Convert BGRA values to a PNG image.
Convert multiple PNGs to a GIF animation.
Convert an APNG animation to a GIF image.
Convert a GIF animation to an APNG image.
Convert an APNG image to a Webp image.
Convert a Webp image to an APNG image.
Convert an APNG image to an MP4 video.
Convert an MP4 video to an APNG image.
Convert an APNG image to an AVI video.
Convert an AVI video to an APNG image.
Convert an APNG image to a WMV video.
Convert an WMV video to an APNG image.
Extract all frames from an APNG image.
Play a PNG animation (APNG) frame by frame.
Change the playback speed of an animated PNG (APNG).
Change how many times an animated PNG loops.
Reverse the order of frames in an animated PNG (APNG).
Created animated PNGs (APNGs) from input images.
Check if the given PNG file is an animated PNG file (APNG).
Create a sprite sheet from all animated PNG (APNG) frames.
Create an animated PNG (APNG) from a sprite sheet.
Create Excel art from a PNG image.
Randomly distort data in a PNG file to make a glitched PNG.
Find all grayscale pixels in a PNG (grayscale mask).
Find all color pixels in a PNG (color mask).
Invert the alpha channel values in a PNG.
Break a PNG image into multiple pieces.
Generate a slideshow animation from multiple PNGs.
Generate a mosaic wall from multiple PNGs.
Convert a PNG into a hexagonal grid of pixels.
Convert a PNG into a triangular grid of pixels.
Create a Voronoi diagram from a PNG image.
Darken PNG corners compared to its center.
Create multiple reflections of a PNG.
Apply a Bayer filter on a PNG.
Make a PNG look like it was taken via night vision goggles.
Make a PNG look like it's spherical.
Run a PNG through the Mobius Transform.
Convert between RGB, CMYK, HSV, and HSL color spaces.
Convert between 8-bit, 16-bit, 24-bit, and 32-bit PNG depths.
Remove dithering from a PNG image.
Convert a PNG to an ASCII art image.
Convert ASCII art to a PNG image.
Convert a PNG to an ANSI art image.
Convert ANSI art to a PNG image.
Convert a PNG to a Braille art image.
Convert Braille art to a PNG image.
Create a PNG image from the given bytes.
Convert a PNG image to bytes.
Increase the quality of a PNG image.
Extract a 2d slice from a PNG.
Create a PNG that contains all possible RGB colors.
Find all textual information in a PNG image and extract it.
Given any 2D PNG, add 3rd dimension to it.
Quickly erase text (labels, captions) from a PNG.
Quickly delete a watermark from a PNG.
Salvage a PNG that has bad bytes in it and doesn't open.
Conceal a secret message in a PNG image.
Update meta data of a PNG file.
Delete meta data from a PNG picture.
Check if the given file is a valid PNG without errors.
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We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling we love to make people's lives easier, so we created this collection of online PNG tools. We created the simplest possible user interface for our tools and they are now used by millions of users every month. Behind the scenes, our online PNG tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!
