How to use PicPrep

From adding images to saving them, step by step on real screens. Start with the 81-second video guide.

Video guide1:21

No audio. Captions explain each step.

STEP 1Add images
STEP 2Rename
STEP 3Crop and rotate
STEP 4Choose format and size
STEP 5Save

Add images

JPG, JPEG, PNG, WebP and AVIF

Add files or a folder

Use Choose files or Load folder, or drag images onto the window.

AVIF can be loaded and is saved as JPEG or WebP.

PicPrep start screen with Choose files and Load folder

Review your images

Loaded images appear as cards with their file size and dimensions, so heavy files are easy to spot.

Switch between Grid and List

Use Grid or List at the top right. List view is handy for large batches.

Choose which images to process

Unchecked images are skipped when you save. Select all and Deselect switch everything at once.

Rename

Give images consistent, numbered file names

Enter a base name and separator

Type a base file name and choose a separator: hyphen, underscore or none. You can also set the start number.

Base file name summer-campaign with the separator menu open

Batch rename

Choose Batch rename to name the selected images summer-campaign-01, -02, -03 and so on.

Rename one image or restore names

Edit the name field on any card to rename just that image. Restore original names brings back the original file names.

Crop and rotate

Choose Edit on any card

Free crop

Edit opens the Adjust image dialog. With Free selected, drag the corner handles to set the area.

Crop to a ratio

Choose 16:9, 4:3 or 1:1 to keep the ratio while you adjust the area.

Rotate and flip

Use Rotate 90° right and Flip horizontally. Reset edits returns to the original.

Export at a fixed size

Fixed size crops to the ratio of the width and height you enter, then exports at that size.

Example: 1200 × 630 px for social images

After you choose Apply, the card shows Edited. The original file is not changed; edits are applied when you save.

Choose format and size

Set how images are saved in Output settings

Compress and save (JPEG quality)

Keep the format and reduce the file size. Move the JPEG quality slider left for smaller files or right for better quality.

Compress and save with the JPEG quality slider

PNG: Smaller size or Best quality

Smaller size reduces colors for a big saving; Best quality keeps the image identical. If unsure, start with Smaller size.

Convert to WebP

Save everything as WebP. Adjust WebP quality with the slider.

Save in original format

Keep the format and apply only your edits, prioritizing quality.

Resize with presets

Pick the long edge from presets for common uses. Images smaller than the target are never enlarged.

2560 px (Large), 1920 px (Full HD), 1600 px (Web hero image)
1200 px (Web standard), 800 px (Small), 480 px (Thumbnail)

Custom long edge

Choose Custom and enter the long edge in pixels for any other size.

Save

PicPrep writes new files and never overwrites your originals

Choose an output location

Suggested locations is the quickest way. A subfolder named optimized inside the source folder is recommended and is created when you save. You can also choose any folder with Select.

Save and check the results

Choose the save button. Each card then shows the size before and after, and the reduction.

The free edition saves up to 5 images at a time; loading, editing and previewing are unlimited. Saved images are deselected, so you can save the rest next. A paid license removes the limit.

Images saved, with the size reduction on each card

Open the results

Open output location shows the saved files right away.

Figures shown are from sample images. Savings vary by image and settings.

Try the free edition

Every feature is included, up to 5 images per save, with no time limit.

Download for Windows — free See plans