OPTIMIZE PDF
Free Compress Images in PDF online
Reduce embedded image sizes.
Compress Images in PDF is a free browser tool that lets you reduce embedded image sizes. Add your PDF, adjust the Compress Images in PDF options if you need to, then download the result immediately. Compress Images in PDF works on your device only, so no file or text is ever uploaded.
- Free to use
- No signup
- No uploads
- Works offline
Why use Compress Images in PDF
- reduce embedded image sizes without installing software
- Your PDF is processed on your device by Compress Images in PDF, never uploaded
- Compress Images in PDF needs no account, email address or payment details
- Compress Images in PDF is batch-friendly: reuse it immediately on the next file
- Compress Images in PDF is keyboard accessible and screen-reader friendly
- Compress Images in PDF is free forever, with no watermark on the result
Compress Images in PDF runs entirely inside your browser. Your PDF is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use Compress Images in PDF
- Add your PDF Drag your PDF onto the drop zone or pick it from your device.
- Adjust the options Set the options that control how Compress Images in PDF handles your input.
- Run the tool Compress Images in PDF works instantly on your device, with no queue and no upload wait.
- Download the result Save the finished file straight to your device, then reuse the tool as often as you like.
Benefits
Private by design
Your PDF stays on your device while Compress Images in PDF works. Compress Images in PDF never sends it to a server, so confidential work stays confidential.
Instant results
There is no upload step, so Compress Images in PDF starts the moment you add your PDF.
No signup, no limits
Use Compress Images in PDF as many times as you want. Compress Images in PDF asks for no account, adds no watermark and keeps no paid tier gating the output.
Works offline
Once the page has loaded, Compress Images in PDF keeps working without a connection, which helps on flights and locked-down networks.
Who it is for
For students
Students use Compress Images in PDF to hand in coursework without installing software: reduce embedded image sizes on a shared or locked-down machine.
For freelancers
Compress Images in PDF helps freelancers send client deliverables quickly, since your PDF never leaves the laptop it was created on.
For legal and finance teams
Compress Images in PDF helps legal and finance teams handle sensitive documents quickly, since your PDF never leaves the laptop it was created on.
How it works
Compress Images in PDF loads your PDF into memory, applies the change you requested to the underlying data rather than to a screenshot of it, and writes a fresh copy for download. Your original stays untouched on disk, and every step of Compress Images in PDF happens inside your browser sandbox.
Frequently asked questions
Is Compress Images in PDF free to use?
Yes. Compress Images in PDF is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does Compress Images in PDF upload your PDF to a server?
No. Compress Images in PDF processes your PDF inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a file size limit?
The practical ceiling is your device's available memory rather than a server quota. Files up to roughly 100 MB work comfortably on a typical laptop in Compress Images in PDF.
Do I need to install anything to use Compress Images in PDF?
No installation is needed. Compress Images in PDF runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use Compress Images in PDF on a phone or tablet?
Yes. The Compress Images in PDF interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your PDF when I close the tab?
It is discarded. Compress Images in PDF keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
Related tools
- Compress PDF | Reduce file size without losing quality
- Reduce Resolution | Lower PDF resolution for smaller files
- Extract Images | Save the pictures inside a PDF at full quality
Last updated: 2026-09-07