How much smaller will my PDF get?

It depends entirely on the file. Text PDFs are already compact, so the lossless “Light” option gives only modest gains. Scanned or image-heavy PDFs can shrink a lot with “Strong”, which re-encodes the page images.

What is the difference between Light and Strong?

Light re-saves the PDF without changing its content, so text stays selectable — but the savings are small. Strong renders each page to a JPEG at the quality you pick and rebuilds the PDF from those images: much smaller for scans, but the text becomes part of the image and is no longer selectable or searchable.

Will Strong compression reduce quality?

Yes — it is lossy. You choose High, Medium or Low; lower quality means a smaller file with more visible compression. The size is shown after compressing so you can try another setting.

Are my PDFs uploaded to a server?

No. Every operation runs entirely in your browser on your own device. Your files are never uploaded anywhere, and nothing is stored once you close the tab.

Is it really free? Are there limits?

Yes, it is completely free with no account required. There are no page or file-count limits and no watermarks — because the work happens on your device, there is nothing for us to meter.

Reduce PDF file size

Make a PDF file smaller. Choose a lossless re-save that keeps your text selectable, or a stronger setting that re-renders pages as images — the right choice for scans and image-heavy files. Your files are never uploaded — everything runs on your device.

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How to reduce PDF file size

Open your PDF

Drag and drop the PDF, or click to choose it. You can reorder, rotate or delete pages first if you like.
Choose how far to shrink it

“Light” re-saves losslessly and keeps text selectable. “Strong” re-renders each page as an image — pick a quality — for much smaller scans.
Reduce the size & download

Click “Compress & download”. You will see the new file size next to the original so you can judge the result.

What you can do

Merge & split

Combine several PDFs into one, or pull out just the pages you need and download them as a separate file.

PNG to PDF, JPG to PDF

Drop in PNG or JPG images and each one becomes a PDF page you can arrange alongside your documents, then download as a single PDF.

PDF to PNG, PDF to JPG

Go the other way too: render each page (or just the ones you select) to PNG or JPG and download them together as a ZIP.

Rearrange PDF pages

Drag a page by its handle to move it. Works with a mouse and with touch, so you can reorder pages on your phone too.

Rotate & auto-orient

Turn any page 90° at a time, or let Auto-rotate detect sideways and upside-down scans and straighten them for you.

Preview any page

Click a page to open a crisp full-size preview and step through the document before you download.

Delete & extract

Remove pages you do not need, or extract a range by selecting pages and downloading only the selection.

Reduce the file size

Make a PDF smaller: a lossless re-save that keeps selectable text, or a stronger image setting for scans and image-heavy files.

Private and free

No accounts, no page limits, no watermarks. Your files are never uploaded — every operation runs locally in your browser.

Frequently asked questions

How much smaller will my PDF get?: It depends entirely on the file. Text PDFs are already compact, so the lossless “Light” option gives only modest gains. Scanned or image-heavy PDFs can shrink a lot with “Strong”, which re-encodes the page images.
What is the difference between Light and Strong?: Light re-saves the PDF without changing its content, so text stays selectable — but the savings are small. Strong renders each page to a JPEG at the quality you pick and rebuilds the PDF from those images: much smaller for scans, but the text becomes part of the image and is no longer selectable or searchable.
Will Strong compression reduce quality?: Yes — it is lossy. You choose High, Medium or Low; lower quality means a smaller file with more visible compression. The size is shown after compressing so you can try another setting.
Are my PDFs uploaded to a server?: No. Every operation runs entirely in your browser on your own device. Your files are never uploaded anywhere, and nothing is stored once you close the tab.
Is it really free? Are there limits?: Yes, it is completely free with no account required. There are no page or file-count limits and no watermarks — because the work happens on your device, there is nothing for us to meter.

Tried Light and got nothing back? That is the usual result, and it is not the tool: in a 49 MB manual we measured, 95% of the image bytes were already JPEG, and a lossless pass took 3.6% off. Why PDFs get big, and what actually shrinks them — with the byte counts from four real documents, and an honest note on what no compressor can do.

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