VoidConvert

Compress PDF: Reduce File Size

Compress PDF files online for free. Choose light, balanced or strong compression and see the size before and after. JPG and PNG images too. No signup.

About this converter

Shrink big PDFs so they fit email and upload limits. Pick light, balanced or strong compression; images inside the PDF are resampled and the text stays sharp and selectable. You see the size before and after. JPG and PNG photos can be compressed too.

Accepted files: .pdf, .jpg, .jpeg, .png

How to use the Compress PDF

  1. Upload a PDF (or a JPG/PNG image), up to 200 MB.
  2. Choose a compression level: Light (best quality), Balanced or Strong (smallest file).
  3. Press Compress and download the smaller file. The old and new sizes are shown.

Questions

How much smaller will my PDF get?

It depends on the file. PDFs with lots of photos or scans usually shrink the most; text-only PDFs are often already small. If a file can't be made smaller, you get the original size back, never a bigger file.

Will the text stay sharp?

Yes. Text and vector graphics are kept; compression mainly lowers the resolution of images inside the PDF.

Which compression level should I pick?

Light keeps print quality, Balanced suits email and screens, and Strong makes the smallest file with lower image quality.

Can I compress JPG and PNG images?

Yes. Upload a JPG or PNG on this page; large photos are resized and re-encoded to cut the file size.

What is the maximum file size?

Up to 200 MB per file.

Are my files kept?

No. Uploaded files and converted results are used only for your conversion and are deleted automatically after 24 hours, or sooner. See our Privacy Policy.

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PDF to Audio: Turn Any PDF into an MP3 Audiobook

Make an audiobook from any PDF: ebooks, study notes, reports or articles. VoidConvert reads the text aloud with natural-sounding Piper voices (English, Hindi, Japanese) and gives you one MP3 you can play on your phone, in the car or offline. Scanned PDFs and photos of notes are read with OCR first. EPUB, Word, text and RTF files work too.

Open PDF to Audio Converter →
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PDF to Word Converter (DOCX)

Upload a PDF and get an editable .docx that opens in Microsoft Word, Google Docs or LibreOffice. Text, tables and images are kept in place so you can edit contracts, CVs and reports without retyping. Scanned PDFs are detected automatically and run through OCR (English, Hindi, Japanese).

Open PDF to Word Converter →
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Compress PDF: Reduce File Size

Shrink big PDFs so they fit email and upload limits. Pick light, balanced or strong compression; images inside the PDF are resampled and the text stays sharp and selectable. You see the size before and after. JPG and PNG photos can be compressed too.

Open Compress PDF →

Get updates and bigger file limits

Join the list for early access to batch conversion and bigger file limits.

FAQ

How do I turn a PDF into an audiobook?

Open PDF to Audio, upload your PDF, pick the language and voice, and press Convert. You get one MP3 you can listen to anywhere.

Is VoidConvert free?

Yes. Convert files for free with no account.

Are my files private?

Files are processed on our server only to do your conversion. They are never sold or used to train AI.

Can I use it on my phone?

Yes. Open the site on your phone and tap "Install app" or "Add to Home Screen".

Does PDF to audio work with scanned PDFs?

Yes. VoidConvert detects scanned, image-only PDFs automatically and reads them with OCR in English, Hindi or Japanese. Pick the document language for best results.