Resize Image for Printing
Choose a real print size and PPI. See the required pixels, crop or keep the whole photo, and download a JPG or PNG with density information.
- Runs in your browser
- No image upload
- Review before download
Upload an image
Use one JPG, JPEG, static PNG or static WebP image. Animated images are not supported.
Choose print size and PPI
Pick a photo or paper size, turn it portrait or landscape, or enter a custom size in inches, centimeters or millimeters.
Photo sizes
Paper sizes
PPI is often called DPI in print workflows. 300 PPI is a common high-quality target; check your printer or lab requirements.
Required output: 1200 × 1800 px
Frame the print
Crop to fill the print area or fit the whole photo within the exact print canvas. Your image is never stretched.
Drag the image and adjust zoom to choose the crop. The output has the exact required pixels.
Preview and export
Compare the original with the selected print framing before processing.
Upload an image to preview its print framing.
4 × 6 in · 300 PPI · 1200 × 1800 px · Crop to fill
Image bytes stay in your browser. Re-encoding may remove EXIF, ICC profiles and other metadata; the selected PPI is written to JPEG or PNG density metadata.
How to resize an image for printing
Upload a photo, choose a physical print size and PPI, then use Crop to fill or Fit whole image. Check the calculated pixel dimensions and source adequacy before downloading JPG or PNG.
Pixels, inches and PPI
Physical width and height describe the printed size. PPI describes image pixels per printed inch. This tool calculates and creates the corresponding raster pixel dimensions.
PPI vs DPI
PPI means pixels per inch of the image; DPI means printer dots per inch. Print services often casually ask for “300 DPI” when they mean an image supplied at 300 PPI for a chosen print size.
How print size becomes pixels
Required pixels equal inches × PPI, rounded to a whole pixel. Centimeters are divided by 2.54 and millimeters by 25.4 before multiplying by PPI.
4 × 6 photo printing
A portrait 4 × 6 in print at 300 PPI needs 1200 × 1800 px. Landscape orientation swaps the sides to 1800 × 1200 px. These are calculated targets, not universal lab requirements.
5 × 7 photo printing
A portrait 5 × 7 in print at 300 PPI needs 1500 × 2100 px. Choose another PPI if your printer or lab specifies a different target.
8 × 10 photo printing
An 8 × 10 in print at 300 PPI needs 2400 × 3000 px. A lower-resolution source needs explicit upscaling to fill that many pixels.
A4 image sizing
A4 is 210 × 297 mm in portrait, or 297 × 210 mm in landscape. The output pixels depend on your chosen PPI.
Crop to fill vs fit whole image
Crop fills the target rectangle and may remove edges; drag and zoom to choose the composition. Fit keeps every part of the image and uses margins if the aspect ratios differ.
Why aspect ratio matters
A 3:2 photograph and an A4 sheet have different shapes. Choose Crop to remove edges or Fit to preserve the whole image with margins; this tool never stretches content.
Is the source large enough?
Adequacy depends on the actual source dimensions, target pixels and framing mode. The tool compares the scale needed to fill the selected canvas, not the file size.
What happens when an image is upscaled
Upscaling adds pixels through resampling but cannot restore detail the source did not contain. Crop blocks accidental upscaling; Fit can keep the content at native scale on an exact larger canvas.
300 PPI and other print resolutions
300 PPI is a common high-quality target, not a rule for every print. Presets from 150 to 600 PPI and a 1–2400 custom range let you match your print provider.
JPEG vs PNG for printing
JPG is useful for photos and has a real quality setting; PNG can retain transparency and has no fake quality slider. WebP input is accepted, but output is JPG or PNG so density metadata can be written.
Density metadata is not image detail
JPG results receive JFIF density in pixels per inch; PNG results receive pHYs density in pixels per meter. Merely labeling a low-resolution image “300 PPI” creates no new detail.
Other metadata may be removed
Browser re-encoding can remove source EXIF, ICC color profiles and other metadata. EXIF orientation is applied to the visual pixels before resizing.
Browser-local privacy
The source and result are processed in your browser. Image bytes are not uploaded to PicRecast or an external image-processing service.
Printing image resizer FAQ
What PPI should I use for printing?
Use the PPI your printer or lab recommends. 300 PPI is common for high-quality prints, but it is not mandatory for every size or viewing distance.
Is PPI the same as DPI?
No. PPI is image pixels per inch; DPI is printer dots per inch. A lab may use “DPI” informally when asking for image PPI.
How many pixels do I need for a 4×6 print?
At 300 PPI, 4 × 6 in is 1200 × 1800 px; landscape is 1800 × 1200 px.
How many pixels for 5×7?
At 300 PPI, 5 × 7 in is 1500 × 2100 px.
How many pixels for 8×10?
At 300 PPI, 8 × 10 in is 2400 × 3000 px.
Can I resize an image in inches?
Yes. Enter the physical width and height in inches, choose PPI, and the tool calculates and creates the required pixels.
Can I resize in centimeters or millimeters?
Yes. The tool converts centimeters or millimeters to inches internally before calculating pixels at your selected PPI.
Why does my image need to be cropped?
The source and print aspect ratios may differ. Crop fills the print rectangle while removing excess edges.
Can I keep the whole image?
Yes. Fit whole image retains the complete picture on an exact-size canvas with a margin or transparent PNG background.
Will PicRecast upscale a small photo?
Not by default. Crop blocks processing if filling the target requires enlargement. You can explicitly allow it; Fit can keep the image at native scale on a larger canvas.
Does changing PPI create more detail?
No. Metadata alone does not create detail. This tool actually resamples to the calculated pixels when needed, and warns before upscaling.
Does PicRecast write the PPI into the file?
Yes. Re-encoded JPG gets JFIF density in inches; PNG gets pHYs density in pixels per meter, rounded to the nearest integer.
Should I use JPG or PNG for printing?
JPG suits many photos; PNG is useful when transparency or lossless output matters. Check your printer or lab’s accepted formats.
Can I output WebP?
No. Static WebP can be uploaded, but this print page exports JPG or PNG with density metadata.
Are images uploaded?
No. Image processing runs locally in your browser.