Turn a photo into an instant print and save it at true size
This Polaroid photo maker dresses up a picture from your phone or camera as a single instant print. It draws five film formats, Polaroid 600, Polaroid Go, instax mini, instax SQUARE and instax WIDE, using the dimensions the manufacturers publish. Drag your photo into the photo window of the format you pick, then write a caption by hand on the wide bottom margin. You can also choose a film look and a border color.
There are two ways to save. The actual print size is drawn at 600 dpi with that resolution recorded in the file, so printing at 100% gives you a print the same size as the real film. Social 4:5 is a 1080 × 1350 px image with the print resting on a desk backdrop, shadow included. Everything is processed in your browser, and your photo is never uploaded to a server.
When it comes in handy
- Journaling and scrapbooking: print at actual size, cut it out and paste it in, and it matches a photo from a real instant camera. You can also save a PNG and drop it into a notes app.
- Gallery walls and gifts: give a batch of trip photos the same size, border color and pen color, and they look tidy hung in a row. Write the date and place in the caption so you remember when and where each one was taken.
- Giving a phone photo an instant-film feel: unlike an instant camera, where every sheet of film costs money, you can remake the picture as often as you like from a photo you already have. Save it as Social 4:5 and it fits a tall feed without being cropped.
- Invitations, photo cards and event notices: write a name, a date or a short greeting on the bottom margin and the photo doubles as a card.
- Comparing sizes before you buy an instant camera: the size chart in the workspace lays the five films side by side at the same scale. Swap the format on the same photo and you can see which one suits your pictures.
How to use it
- Choose a photo: press Choose photo, drag a picture onto the workspace, or paste a copied image. A sample photo is open at first, and every time you open a photo the window fades up from dark, as if it were developing.
- Pick a film size: tap one of the five prints in the size chart on the shelf. Below the chart you will see the overall size, the photo window size and how long real film takes to develop.
- Fit the photo: drag inside the photo window to reposition, then use the fit row under the print to zoom, tilt or rotate 90°. On a touch screen, pinch with two fingers to zoom. With a keyboard, select the photo window and use the arrow keys (hold Shift for 5 mm steps) and + and −. Movement is limited so the photo always fills the window, and tilting raises the zoom automatically.
- Write a caption: click the bottom margin and type. In the caption panel, choose a font, size, pen color and alignment, and press Add date to append the date the photo was taken.
- Look, border and save: pick one of the 8 film looks, fine-tune it with the effect sliders, choose a border color, then use the save row to pick actual print size or Social 4:5 and JPG or PNG. Copy puts the same image on your clipboard as a PNG.
Five instant film sizes
The overall and photo window sizes in the table are the values Polaroid and Fujifilm (instax) list on their official pages. Polaroid states that SX-70, 600 and i-Type film share one size, so they sit on one row. The top margin is not published by either maker, so it was measured from official product photos as a ratio of the print width. Measured the same way, the instax mini photo window comes out at 46.3 × 62.4 mm, which agrees with the official 46 × 62 mm. The side margin is (overall width − window width) ÷ 2, and the bottom margin is whatever height remains.
| Film | Overall | Photo window | Margins top · side · bottom | 600 dpi export (px) | Real development time |
|---|---|---|---|---|---|
| Polaroid 600 · i-Type | 88.5 × 107.5 | 76.8 × 78.9 | 6.2 · 5.8 · 22.4 | 2090 × 2540 | 10–15 min |
| Polaroid Go | 53.9 × 66.6 | 46 × 47 | 4.9 · 4.0 · 14.7 | 1273 × 1573 | 10–15 min |
| instax mini | 54 × 86 | 46 × 62 | 7.8 · 4.0 · 16.2 | 1276 × 2031 | about 90 sec |
| instax SQUARE | 72 × 86 | 62 × 62 | 7.0 · 5.0 · 17.0 | 1701 × 2031 | about 90 sec |
| instax WIDE | 108 × 86 | 99 × 62 | 6.8 · 4.5 · 17.2 | 2551 × 2031 | about 90 sec |
Take Polaroid 600. The overall width is 88.5 mm and the photo window is 76.8 mm wide, so each side margin is (88.47 − 76.8) ÷ 2 = 5.8 mm. Subtract the 6.2 mm top margin and the 78.9 mm window height from the 107.5 mm total height and the bottom margin is 22.4 mm. That bottom margin, three to four times wider than the others, is what gives an instant print its look.
A few things stand out in the table. The Polaroid 600 window is close to square, though at 78.9 mm it is slightly taller than it is wide (76.8 mm). Comparing window areas, Polaroid 600 is about 2.1 times instax mini, and the instax WIDE window (99 × 62 mm, 6,138 mm²) is slightly larger than Polaroid 600 (6,063 mm²). Only instax WIDE is a landscape print, so landscape photos suit WIDE and portrait photos suit mini.
How to print at true size
For the actual print size, the number of pixels is set as millimeters ÷ 25.4 × 600. A Polaroid 600 is 88.47 ÷ 25.4 × 600 = 2,089.8 wide, which rounds to 2,090 px, and the height works out to 2,540 px by the same formula. The file header then records 600 dpi (JFIF density in a JPG, pHYs in a PNG). A picture file made by a browser usually leaves this blank, so different programs read it as 72 dpi or 96 dpi.
- In the print dialog, set the scale to Actual size or 100%. If you choose "Fit to page", the image is stretched or shrunk to the paper.
- If you send it to a print shop, give them the file as is and ask for it at original size. Enlarging it to a standard print size such as 4 × 6 in will not give you real film dimensions.
- To cut it out, follow the outer edge of the border. The edge of the saved image is the edge of the print.
- Screen color and printed color differ. Paper, ink and printer settings can make the result look darker, so do a test print of one first.
Social 4:5 is sized to look good on screen, not to match the real print. The print is placed on a 1080 × 1350 px background at 78% of the height and within 80% of the width, with a shadow added, so even a tall instax mini sits in the middle without being cropped.
Eight film looks
For each look, five points are fixed that say what red, green and blue become at input brightness 0, 64, 128, 192 and 255, and the points are joined with the monotone cubic interpolation of Fritsch and Carlson (1980). The curve does not wobble between points, so a brighter spot never ends up darker than a darker one. The black-and-white looks first convert to gray (0.299 red + 0.587 green + 0.114 blue) and then go through the curve. The table below shows the values the tool uses.
| Look | Black 0 → | Gray 128 → | White 255 → | Saturation | Grain | Vignette |
|---|---|---|---|---|---|---|
| Original | 0·0·0 | 128·128·128 | 255·255·255 | ×1 | 0 | 0 |
| Polaroid-style color | 24·26·34 | 142·138·128 | 244·238·222 | ×0.88 | 10 | 22 |
| instax-style color | 4·6·12 | 130·132·138 | 250·251·253 | ×1.12 | 6 | 10 |
| Faded print | 46·36·26 | 160·144·120 | 244·230·204 | ×0.74 | 16 | 30 |
| Expired film | 40·30·56 | 156·130·148 | 236·222·226 | ×0.8 | 22 | 34 |
| Polaroid-style B&W | 22·20·18 | 136·133·128 | 242·239·234 | B&W | 14 | 24 |
| instax-style mono | 6·6·6 | 128·128·128 | 250·250·250 | B&W | 10 | 12 |
| Sepia | 26·16·8 | 164·134·100 | 250·232·198 | B&W | 18 | 26 |
When black maps to a value above 0, blacks lift into gray and the picture looks faded. At gray 128, red above blue gives a warm tone and red below blue a cool one. If white maps below 255, the brightest areas are held back and look softer. The Polaroid-style color look raises black to 24–34 and holds back blue in the highlights for a warm, soft result, while the instax-style color look leaves black almost untouched and raises saturation to 1.12× for a crisper one.
result = original + (look color − original) × look strength
Example: a gray of (128, 128, 128) with the Polaroid-style color look becomes (142, 138, 128) on the curve, then (142, 138, 129) after saturation ×0.88. At 50% strength, red becomes 128 + (141.5 − 128) × 0.5 ≈ 135, giving (135, 133, 129).
Grain, vignette and dust are drawn in proportion to the size of the photo window, and the grain pattern and dust positions always come from the same seed. That is why the small on-screen preview and the 600 dpi file keep grain coarseness and dust positions in the same proportion. When a grain cell would be smaller than 1 px in the preview, it is drawn at 1 px and made fainter to match. Paper texture is a very faint noise laid over the whole border, and a shallow shadow is always drawn along the edge of the photo window, as if the print were lapping slightly over the picture.
How real instant film develops
After an instant photo leaves the camera, the chemicals inside the print react and the picture develops on its own. According to the manufacturers, Polaroid 600 and Go color film takes 10–15 minutes to develop fully and instax film takes about 90 seconds, which varies with the surrounding temperature; instax is meant to be used at 5–40°C. The developing effect shown when this tool opens a photo shortens that process to 3 seconds as an on-screen effect, and it does not appear if your device has reduce motion turned on.
The idea that shaking makes it develop faster is not true. Polaroid tells you never to shake a photo while it develops, and explains that shaking can disturb the chemistry and cause blotches and distortion along the bottom edge. Lay the photo flat and avoid pressing or bending it.
Common mistakes
- Choosing "Fit to page" when printing: even with 600 dpi in the file, the fit setting in the print dialog changes the size. Choose Actual size or 100%.
- The photo and the window have different proportions, so it gets cropped: a landscape photo in a tall instax mini loses a lot on both sides. Drag the window so the important part is framed, or pick a format whose shape is close to the photo, such as WIDE.
- A dark pen on a dark border: if you have not picked the pen color yourself, a dark border switches to a white pen automatically. A pen color you chose is left alone, so if you picked a black pen on a black border, switch to white.
- A photo received through a messaging app shows today's date: messaging and social apps can strip the photo info. The date goes in as text, so edit it yourself or open the original file.
- The text gets too small: when it is longer than the photo window is wide, it shrinks automatically. Shorten the phrase, or if raising the text size no longer makes it bigger, choose a wider format such as WIDE or Polaroid 600.
Limits and notes
- The 8 film looks are approximate adjustments chosen for this tool. The color of real instant film changes with the film type, temperature, light and how it was stored, and this tool does not calculate spectral sensitivity or chemical reactions.
- The top margin was measured from official product photos, so it can differ slightly from a real print. The overall size and photo window size are the manufacturers' official values.
- The gloss, thickness, rounded corners and chemical blotches of a real print are not drawn. The saved image is a flat, square-cornered picture.
- Polaroid, SX-70, i-Type, instax and Fujifilm are trademarks of their respective owners. This tool is not affiliated with those companies, and the names are used only to tell you the film size and which look is imitated.
- Photo info from the original (camera, location, date taken) is not copied into the saved file. A photo whose long side is over 2,400 px is shown on screen as a reduced copy, and it is redrawn from the original when you save.
Basis: the relevant sentences on the manufacturer pages below were checked on 2026-10-21. The numbers in the size table, the look table and the examples match this tool's calculations. The sample photo is "Happy dog at Anjuna Beach" by Samantha Scholl on Wikimedia Commons (CC0).
Sources
- 01Polaroid Support — What are Polaroid photo dimensions?SX-70, 600 and i-Type photo 7.894 × 7.6801 cm, overall 10.752 × 8.847 cm; Go overall 66.6 × 53.9 mm, photo 47 × 46 mm
- 02Polaroid — Color 600 FilmFormat 107 × 88 mm, image area 79 × 77 mm, develops in 10–15 minutes, works with 600 and i-Type cameras
- 03Polaroid — Color Go FilmFormat 66.6 × 53.9 mm, image area 47 × 46 mm, develops in 10–15 minutes
- 04Polaroid Support — Why do my photos have distortions and blobs on them?Don't shake a photo while it develops; shaking causes blotches along the bottom edge; keep it flat
- 05instax — mini filmFilm size 86 × 54 mm, picture size 62 × 46 mm, develops in about 90 seconds, 5–40°C
- 06instax — SQUARE filmFilm size 86 × 72 mm, picture size 62 × 62 mm, develops in about 90 seconds
- 07instax — WIDE filmFilm size 86 × 108 mm, picture size 62 × 99 mm, develops in about 90 seconds
- 08instax Australia — WIDE film108 (W) × 86 (H) mm, picture 99 (W) × 62 (H) mm, written width first and height second
- 09Fritsch, F. N.; Carlson, R. E. (1980). Monotone Piecewise Cubic InterpolationSIAM Journal on Numerical Analysis 17(2), 238–246, monotone cubic interpolation used for the look curves
Frequently asked questions
Is my photo uploaded to a server?
No. The photo is processed on a canvas inside your browser, and the saved files are made on the device you are using. This tool does not send your photo to a server, and the photo you opened disappears when you close the page.
Can I print at the real Polaroid size?
Yes. Saving at actual print size records 600 dpi in the file, so choosing 100% (actual size) in the print dialog gives you 88.5 × 107.5 mm for Polaroid 600 and 54 × 86 mm for instax mini. If you choose "Fit to page", the size changes.
How different are instax mini and Polaroid 600 in size?
By the manufacturers' figures, instax mini is 54 × 86 mm overall with a 46 × 62 mm photo window, and Polaroid 600 · i-Type is 88.5 × 107.5 mm overall with a 76.8 × 78.9 mm photo window. Comparing window areas, Polaroid 600 is about 2.1 times instax mini. The size chart in the workspace shows all five at the same scale, so you can see the difference directly.
How do I write on the print, and which fonts are there?
Click the bottom margin of the print and start typing. The English edition offers Kalam, Pacifico and Lobster (all under the SIL Open Font License) plus your device's system sans, and long text shrinks automatically to fit the width of the photo window. The saved image draws the text in the same font.
Where does the date for Add date come from?
It reads the date taken from the JPEG photo info (Exif) and uses today's date if there is none. The date goes in as handwriting at the end of the caption, like Oct 21, 2026, so you can edit it freely. Photos that went through a messaging or social app may have lost their photo info.
Are the colors identical to real Polaroid film?
No. The 8 film looks are approximate adjustments chosen for this tool (color curve, saturation, grain, vignette), and the color of real instant film changes with the film type, temperature, light and how it was stored. Looks that carry a brand name are named to show which mood they imitate.
Does shaking a Polaroid make it develop faster?
No. Polaroid tells you never to shake a photo while it develops and to lay it flat. Shaking can disturb the chemistry and cause blotches along the bottom of the photo. Polaroid color film takes 10–15 minutes to develop fully, and instax film takes about 90 seconds.
Can I open iPhone HEIC photos?
Only if your browser can open HEIC directly. Safari usually can, but Chrome, Edge and Firefox often cannot. If it won't open, convert the HEIC to JPG and open it again.