Resize, compress, watermark and convert hundreds of photos at once, on the device.
Batchly runs on iPhone and iPad. The app interface is in English.
Download on the App StoreResizing photos one at a time is slow. Two ways to resize many at once on iPhone: the free Shortcuts route and Batchly, with the long-edge trick photographers use.
A 12 MP iPhone photo is often 2 to 5 MB, and email limits fill fast. Three ways to shrink a batch: Mail's built-in option, Shortcuts, and a batch app.
Adding a logo to 50 photos by hand takes an evening. How to batch watermark on iPhone, where to put the mark, and the honest limits of watermarks.
iPhone photos are HEIC by default, and some websites and Windows PCs still choke on them. Three fixes: camera settings, automatic transfer, and batch conversion.
Etsy recommends at least 2000 px; eBay wants 500 px minimum and 1600 px for mobile. The numbers, the shapes, and a one-pass workflow for a whole shoot.
The profile grid now shows posts as 3:4 tiles. What that means for 1080 × 1440, 1080 × 1350 and square posts, and how to resize a whole shoot to match.
Forms often say 'max 1 MB' or 'max 200 KB'. What decides file size, how to get under a limit without guessing too much, and how to do a batch.
A working sports photographer explains how he gets photos to a team during an event using an iPad: camera app transfer, a quick edit, then one batch pass.
Shortcuts, the Photos app's copy-edits feature, and dedicated batch apps each do part of the job. A checklist of the things that differ, and where Batchly fits.
Compressing a camera roll only saves space once the originals are gone. The built-in options to try first, and when batch compression makes sense.
Three built-in ways to keep GPS location out of iPhone photos you share or sell: share sheet Options, the Photos info panel, and Camera location settings.
The Photos app crops one picture at a time. How to crop a whole set to 1:1, 4:3, 16:9 or a custom ratio in one go, and which photos to check afterwards.
Same edits, every batch: how creators can chain resize, crop, watermark and compress into one saved workflow on iPhone or iPad, and what to check before posting.
An offline batch editor processes photos on your iPhone instead of a web server. What that protects and how to share edited photos without your location.
Two ways to apply the same edit to many iPhone photos: Copy Edits and Paste Edits in Photos, or a batch editor that adjusts, resizes and exports a whole set in one run.
Resale apps crop photos differently: Poshmark now frames covers in 3:4, Depop is square, Vinted and Facebook Marketplace publish no pixel size. How to prep a batch.
Shopify recommends 2048 × 2048 px square product images, with uploads up to 20 MB. How to crop and resize a whole catalogue shoot on iPhone to match.
Amazon main images need a pure white background, the product filling about 85% of the frame, and at least 1000 px on the longest side for zoom. Batch them on iPhone.
There's no single real estate photo size: each MLS sets its own limits. How to find yours, why horizontal 3:2 or 4:3 is the norm, and how to resize a shoot.
A 4x6 print at 300 PPI needs 1200 × 1800 pixels. Pixel sizes for common print sizes, what DPI and PPI mean, and how to crop a batch to 2:3.
JPG for sharing and uploads, PNG for graphics and transparency, TIFF for print and archiving. How the formats differ and when to convert iPhone HEIC photos.
The Photos app rotates one picture at a time. How to rotate or mirror a whole batch on iPhone, for scanned documents, sideways shots and selfies.
Size images to the largest width they display at, doubled for sharp screens, then compress. Practical widths for blogs, shops and hero images.
iPhone's Files app renames one file at a time. How to batch rename photos on iPhone: Shortcuts, or Batchly, which renames every selected photo in one go.
How to name photos on iPhone so they sort: YYYY-MM-DD dates, numbers with leading zeros, prefix or suffix. Then rename a whole batch at once with Batchly.