PhotoSize — Exact KB Photo Compressor & Resizer

Compress, resize and convert photos to an exact KB size and exact dimensions for online forms, passport and ID photos, and signatures. Free, private and works offline.

Tools

  • Compress to KB — Reduce a photo to an exact size such as 20 KB, 50 KB or 100 KB.
  • Form Ready Photo — Exact dimensions, maximum file size and format in one step.
  • Resize Image — Resize by pixels, millimetres, inches or percentage.
  • Convert Image — Convert between JPG, PNG and WebP.
  • Passport / ID Photo — Common passport and ID photo sizes with an easy crop.
  • Signature Resizer — Trim, clean and resize a scanned signature.
  • Edit & Enhance — Rotate, straighten documents, enhance scans, adjust colours and remove backgrounds.
  • Remove Background — Cut out people, products or pets and make the background transparent, a colour, a picture or blurred.
  • Images to PDF — Combine photos into one PDF, with an optional file size limit.
  • PDF to Word — Convert a PDF into an editable Word (.docx) document.
  • Compress PDF — Make a PDF smaller while keeping the text sharp and selectable.
  • Merge PDF — Combine several PDFs into one and put them in any order.
  • PDF to Excel — Turn tables in a PDF into an editable Excel (.xlsx) spreadsheet.
  • PDF to PowerPoint — Convert PDF pages into editable PowerPoint (.pptx) slides.
  • Excel to PDF — Convert XLSX, XLS, ODS or CSV spreadsheets into a PDF.
  • PowerPoint to PDF — Convert PPTX presentations into a PDF, one page per slide.
  • HTML to PDF — Convert an HTML file or HTML code into a PDF.
  • Split PDF — Split a PDF into several files, or extract the pages you need.
  • Organize PDF — Reorder, rotate and delete PDF pages.
  • PDF to JPG — Save PDF pages as JPG or PNG images.
  • Image to Text (OCR) — Copy the text from photos, screenshots and scanned PDFs.
  • Remove Photo Info — See and remove hidden data such as location and camera details.

How it works

  1. Choose a tool. Pick what the form asks for: a size limit in KB, exact dimensions, a passport or ID size, a format, or a signature.
  2. Add your photos. Select up to five photos. They stay on your device — nothing is uploaded.
  3. Set the requirements. Enter the target size, dimensions or format. Presets cover the most common cases.
  4. Save and upload. Each result is checked against your requirements. Save or share it and upload it to your form.

Guides

Frequently asked questions

Is PhotoSize free?

Yes. All tools are free to use. The site is supported by a small number of non-intrusive ads on content pages.

Are my photos uploaded to a server?

No. Every photo is processed inside your browser on your own device. Nothing is uploaded, which keeps identity photos and signatures private.

Can I compress a photo to exactly 20 KB?

PhotoSize finds the best-quality result at or below your target, usually within a few percent of it. If the target cannot be reached at the dimensions you need, it tells you and suggests what to change.

How many photos can I process at once?

Up to five photos at a time with the same settings. Each photo gets its own result, and you can save or share them all together.

Does it work on iPhone, Android and computers?

Yes. PhotoSize works in modern browsers on phones, tablets and computers, and it keeps working offline once it has loaded. You can also install it like an app.

Are the passport presets official?

No. They are common sizes to save time. Requirements vary by country and change over time, so always confirm the exact rules with the issuing authority.