Compress PDF & Image Online — Free File Size Reducer
Drop in a photo, a whole folder of photos, or a PDF — then pick how hard to squeeze. Three one-click levels show you the exact compressed size before you download, or type a target like "200 KB" and let the tool hit it for you. Everything runs in your browser; your files never touch a server.
Compress your files
Drop images or a PDF here
or tap to browse — JPG, PNG, WebP, GIF or PDF · any size · multiple files welcome
Choose FilesThe tool lowers quality (and resolution, if it has to) until each file fits under your target. Very low targets on large photos will look soft — that's the trade, not a bug.
By default a PDF comes back as a compressed PDF and a JPG comes back as a compressed JPG — but you can convert on download, e.g. upload a JPG and download it as a PDF. PNG is lossless, so PNG output shrinks by reducing resolution instead of quality.
How to Use This PDF & Image Compressor
- Upload your files. Drag them onto the box or tap Choose Files. You can mix things freely — five phone photos and a scanned PDF in one go is fine. There's no file count limit and no size limit beyond what your device's memory can hold.
- Look at the size chips. The moment a file loads, the tool quietly compresses it at all three levels in the background and prints the result next to the file: something like Normal 412 KB · Medium 218 KB · Hard 96 KB. You're never guessing what a level will do — the number is right there before you commit.
- Pick a level — or a target. Normal keeps quality high and trims the easy fat. Medium is the everyday choice for email attachments and form uploads. Hard squeezes hardest and you'll see it in fine detail. If a website says "maximum 200 KB", skip the levels entirely: choose Target Size, type 200, and the tool finds the right quality for you.
- Choose the download format. "Same as uploaded" is the default — PDF in, smaller PDF out. But conversion is one tap: a JPG can come back as a PDF (handy for portals that only accept PDF), and a PDF's page can come back as a JPG or WebP image.
- Download. Every file has its own green Download button — tap it and the compressed file saves straight to your device.
Normal vs Medium vs Hard — What Actually Changes
All three levels do the same two things, just with different aggression: they re-encode the image data at a lower quality setting, and past a point they also reduce the resolution. Here's the honest breakdown:
Normal
High quality re-encode at full resolution. On a straight-from-phone photo this alone often cuts 50–70% of the size, because phone cameras save at wastefully high quality settings. Use it when the file just needs to be smaller and nobody should notice anything.
Medium
Moderate quality plus a slight resolution trim. This is the sweet spot for email attachments, WhatsApp documents, and most "file too large" errors. Text in scanned PDFs stays comfortably readable.
Hard
Low quality and a real resolution cut. Files get dramatically small — often under a tenth of the original — but smooth gradients get blocky and fine print softens. Use it for previews, drafts, or when a portal's size limit is brutal.
Target Size
You name the number; the tool binary-searches the quality setting (and shrinks resolution if quality alone can't get there) until each file lands under your KB limit. This is the mode built for government portals, job applications and exam forms that demand "photo under 50 KB, signature under 20 KB".
Compress and Convert in One Step
Because the whole thing runs on a canvas in your browser, changing the output format costs nothing extra. Some combinations people use every day:
- JPG → PDF: a portal only accepts PDF, but your scan is a photo. Upload the JPG, pick PDF as the download format, and you get a single-page PDF at the compressed size.
- PDF → JPG: you need one page of a document as an image for a presentation or a form. The PDF's pages are rendered and the result downloads as a regular image.
- PNG → WebP: screenshots saved as PNG are huge. WebP keeps them sharp at a fraction of the size — usually the single biggest saving this tool can give you.
- Anything → WebP: if the file's final home is a website, WebP is almost always the right answer: smaller than JPG at the same visible quality, and supported by every current browser.
One honest note: PNG output is lossless by definition, so "compressing to PNG" works by reducing resolution, not quality. If you upload a JPG and download it as a PNG at Normal level, the file can even get bigger — the tool will show you the real number so nothing is a surprise.
Your Files Never Leave Your Device
There is no upload step. When you drop a file in, your browser reads it locally, draws it onto a canvas on your own device, and re-encodes it right there. The compressed file is generated in your browser's memory and saved straight to your downloads folder. No server receives your files, no account is needed, and there's no history or gallery of what you compressed — once the tab closes, it's gone from everywhere except your own downloads.
That matters here more than on most compressor sites, because the files people shrink are often the sensitive kind: ID photos, signatures, salary slips, scanned certificates for a government form. Those shouldn't sit on a stranger's server for even a minute — and with this tool they simply never do. It also means the tool keeps working with the internet switched off once the page has loaded, and that a 40 MB photo compresses as fast as your device allows instead of crawling through an upload.
Common Size Limits — A Quick Reference
If you're here because a form rejected your file, these are the limits we see people fighting most often. Set Target Size to the number in the right column and you're through:
| Where you're uploading | Typical limit |
|---|---|
| Government exam forms — photo | 20–50 KB |
| Government exam forms — signature | 10–20 KB |
| Passport / visa portals | Under 1 MB |
| Job application portals — resume PDF | 500 KB – 2 MB |
| Email attachments (comfortable) | Under 5 MB total |
| Website images (good practice) | Under 200 KB each |
Always check the exact limit on the form itself — these are the common ranges, not guarantees.
Frequently Asked Questions
- Is this PDF and image compressor free?
- Yes — free, no account, no watermark, no daily limit. It's a browser tool, so there's no server cost to pass on to you.
- Is there a file size or file count limit?
- No hard limit. Because processing happens on your device, the practical ceiling is your device's memory. A phone handles a batch of photos easily; a 500-page PDF on an old phone may take a while.
- How do I compress an image to exactly 50 KB (or 20 KB)?
- Choose Target Size, type 50 (or 20), then Compress All. The tool searches for the highest quality that still fits under your number, reducing resolution too if it must. The final size shown is the real size of the file you'll download.
- Can I compress multiple images at once?
- Yes — select as many as you like, or drag a whole batch in together. One click compresses all of them at the same level, then download each file with its own button.
- How does PDF compression work here?
- Each page is re-rendered and re-encoded at the chosen quality, then rebuilt into a new PDF. Scanned PDFs (which are really just images inside a PDF wrapper) shrink dramatically. Text-based PDFs that are already small won't shrink much — they were never bloated to begin with.
- Will compression make my PDF text unreadable?
- At Normal and Medium, no — scanned text stays clearly readable. At Hard, fine print softens. If the document is going to be printed or officially submitted, stick to Normal or Medium, or use Target Size with a generous number.
- Can I convert JPG to PDF while compressing?
- Yes. Upload the JPG, select PDF as the download format, and you'll get a single-page PDF containing your compressed image. It works the other way too — a PDF can download as a JPG, PNG or WebP image.
- Why did my PNG get bigger instead of smaller?
- PNG is a lossless format — it can't trade quality for size the way JPG and WebP can. If your source was a JPG, re-saving it as PNG stores it losslessly, which usually costs more bytes. For photos, download as JPG or WebP; keep PNG for graphics, logos and screenshots with sharp edges.
- Does it work on mobile?
- Yes — the whole tool is touch-friendly and works in Chrome, Safari, Firefox and Edge on Android and iPhone. You can compress photos straight from your camera roll.