ResizePing: Resize, PDF, Merge

Three jobs, one small app: resize and compress photos to an exact file size, combine images into one picture, and convert images to PDF. Everything runs on your device. Nothing is ever uploaded.

RESIZE & COMPRESS TO AN EXACT SIZE
Reduce photo size from MB to KB without the guesswork. Compress to an exact target — 20 KB, 50 KB, 100 KB, 200 KB, 500 KB, 1 MB, 2 MB, or any number you type — or set exact dimensions instead: pixels, percent, or a print size in mm / cm / inch with DPI. Photo resizer, image compressor and JPG size reducer in one place, with a live projected size for every photo before you run.

Why it actually hits the target: we search quality and, when a target is too tight for quality alone, step the dimensions down too. Quality-only compressors physically cannot reach small targets; we can. If a target is impossible, you get the smallest honest result with a clear warning — never a fake number, never an endless spinner.

• Exact KB / MB compression, single or batch
• Exact pixels, percent, or print size (mm, cm, inch + DPI)
• Passport and document sizes: 35x45 mm, 2x2 inch, ID and visa photo dimensions
• Presets for common jobs, plus social and web sizes
• JPG, PNG and WEBP output; HEIC input supported
• EXIF handling: GPS location stripped by default, orientation kept
• Sized for WhatsApp, email, web forms and government uploads

COMBINE IMAGES INTO ONE
A photo combiner and image merger, not a sticker editor. Stack photos vertically, join them side by side horizontally, or arrange a grid of 2, 3 or 4 columns. Drag to reorder, set the spacing between images, add an outer margin, and pick the background colour. Great for before-and-after pairs, receipts, screenshots, ID front and back, and long vertical strips for chat or email.

• Vertical stack, horizontal strip, or 2/3/4-column grid
• Drag-and-drop reordering
• Spacing between photos and an outer margin, controlled separately
• Clean white (or any) background, no watermark on your image
• Photo grid, photo stitch and simple collage layouts, no editor bloat

IMAGE TO PDF
Turn photos into a proper A4 PDF: 1, 2 or 4 images per page, portrait or landscape, chosen automatically from your photos or set by hand. Pages are laid out in your order with even margins and gutters, so scans, receipts, forms and homework come out looking deliberate. Multi-page PDF from as many photos as you like, in one pass.

• 1, 2 or 4 images per page, A4
• Automatic or manual page orientation
• Multi-page output in your chosen order
• JPG to PDF, PNG to PDF and HEIC to PDF, fully offline
• Share the PDF straight to mail, chat or Drive

BUILT FOR REAL BATCHES
Run many photos at once with per-item progress you can cancel — no silent partial failures. Every job is written to a searchable History with before and after sizes, the exact settings used, and one-tap re-run. No other resizer keeps a record like this.

PRIVATE BY DEFAULT
• Images are processed 100% on your device and are never uploaded
• Input uses the Android photo picker, so ResizePing needs no storage permission
• Output saves to Pictures/ResizePing or a folder you choose
• GPS location is removed from photo metadata unless you keep it
• No account, no sign-in, no watermark

FREE VS PRO
Free does the real work: exact-KB and exact-dimension resizing, print units, presets, JPG/PNG/WEBP, combine, PDF export, history, and batches up to 5 photos per run.
ResizePing Pro is a ONE-TIME purchase — no subscription, ever. It removes the banner ad, unlocks unlimited batch size, and adds high-quality WEBP and advanced export controls.

WHAT IT IS NOT
No editor bloat, no stickers, no filters you did not ask for, no full-screen ads between taps, no watermark on your photos, no sign-up wall. Just a fast, honest photo resizer, image compressor, picture combiner and image-to-PDF converter that respects your storage, your data and your time.

Questions or a size we should support? Write to [email protected] — we read everything.