What changes and what stays
Each picture is scaled down to the resolution of the level you pick and saved again as JPEG. Text, fonts and vector drawings (lines, charts, logos) are not touched, so you can still select, search and copy the text.
Compress PDF files
Compress PDF files so a scan or a photo-heavy report fits an email or an upload form. The file stays yours: we never receive it or keep a copy.
or drop a file anywhere on this page
One PDF file, any size
Your privacy comes first
Your contracts, passport scans and family videos stay yours. No one but you gets to see them.
We never store your files
They don’t even reach us: your phone or computer does the work. Nothing to delete later.
100% free
No daily limits, no file-size cap, no paid Pro plan.
No sign-up
No account to create, no email to give. No account, nothing to hack.
How it works
- Open the PDFChoose the file that is too big, from your phone or computer.
- Pick a levelLight, Recommended or Strong. The tool shows how much of the file is pictures.
- Save the smaller copyCompare the size before and after, then save.
How much smaller can a PDF get?
It depends on what is inside. In a heavy PDF almost all the weight is pictures: scanned pages and photos. To reduce PDF size, the tool shrinks those pictures and leaves text, fonts and drawings alone.
Three levels
- Light: pictures at 200 dpi. Best for documents you will print.
- Recommended: 150 dpi. Sharp on a screen and noticeably smaller; right for most files.
- Strong: 100 dpi. The smallest file that still keeps real text; fine for reading on a screen.
Can you reduce PDF size without losing quality?
Text and drawings lose nothing at any level. Photos and scans lose fine detail, and you see it only when you zoom in close or print large. If the file has to stay print-ready, use Light.
When it hardly shrinks
- A PDF that is mostly text is already small, and the tool tells you so before you save.
- Pictures that are already small and light stay about the same.
- If the result would not be smaller, you get your original back, unchanged.
Pages as images: the last resort
If the file still won’t fit, turn on Pages as images. Every page becomes one picture, which gives the smallest result. The price: the text can no longer be selected, searched or copied. Use it for documents that only need to be read or printed.
Long scans and limits
The tool works on one picture at a time instead of the whole document at once, so a long scan shrinks on a phone too. It just takes longer. We set no file-size cap and no daily limit.
How to compress PDF on iPhone, Android or Mac
Open this page in Safari or Chrome, choose the PDF from Files, Downloads or Finder, pick a level and save. The smaller copy lands in your downloads, ready to attach. There is nothing to install.
Free, fast and all yours
Free forever
Every tool is free and will stay free. No trial, no ads, no paid plan.
No sign-up, no login
Open the page and start. No account, no email, no password.
Instant
Nothing to upload and no queue: a video opens in a second, a simple trim saves in seconds.
No file size limits
We set none. A file can be as big as your device can handle.
No watermarks, no copyright
No logo on top and no rights claimed: what you make is 100% yours.
Made for phones too
The same tools on iPhone, Android and a computer, with big buttons and plain words.
Questions
Start with Recommended and check the new size. Still too big? Try Strong, then Pages as images. If even that is not enough, cut the file in Split PDF and send it in parts.
Text and drawings look the same. Photos lose fine detail, which you mostly notice when you zoom in or print.
Its weight is not in pictures. Text-only PDFs, and ones with already small pictures, have little to remove.
No. You save a new copy with -compressed in its name, and the original stays as it was.
A phone camera shoots a page at 12 megapixels or more. For reading on a screen, 150 dpi is enough: about 1240 × 1754 pixels for an A4 page. The extra pixels are the extra megabytes.
One at a time. To get one small file, join them in Merge PDF first, then compress the result.
Yes, if the password only blocks printing or editing. A file that asks for a password to open has to be unlocked first in Unlock PDF.