Compress a PDF online, free.
Make PDFs smaller for email and upload forms. Text stays text, so it stays sharp; only the images inside get smaller.
- No account needed
- Never stored
- Images & PDFs
Click a file name to rename it. Use Resize / crop to give one image its own size, crop or format.
Tap an image to rename it, resize or crop it, or download it.
How to make a PDF smaller
A PDF is usually big because of the images inside: scanned pages, photos and logos in print quality. verklein.nu rewrites the PDF with Ghostscript and only shrinks those images. Text, fonts and vector graphics stay exactly as they were, so everything stays sharp and searchable.
Choose the quality
- Small (72 dpi): for reading on screen, the smallest file.
- Medium (150 dpi): for email and uploads. Ready to go.
- High (300 dpi): for printing.
If the PDF has to stay under a fixed limit, say 2 MB for a job application, enter a maximum file size. The resolution is then lowered step by step until it fits. Greyscale makes colour scans much smaller still.
More than compressing
Click a PDF to rotate, delete or reorder pages. Merge several PDFs into one file. And you can save every page as JPG or PNG too.
PDFs with JavaScript, embedded files or form actions are refused, and every upload is scanned for viruses. Everything is deleted right after processing.
How it works
Three steps to resize, optimize or convert any number of images.
Upload images
Drop, paste or pick any number of JPG, PNG, WEBP, GIF, TIFF, AVIF, HEIC or SVG files.
Choose the settings
Pick a size, format and quality. Save them as a profile so they are ready next time.
Download
Every image is processed on the server, in memory. Download them one by one or all at once as a ZIP.
Features
Powered by libvips, the same engine large photo sites use. Nothing is stored, nothing goes to third parties. The demos below are live: try them.
Resize
Set a width, a height, a percentage or a box to fit in. Give one side and the other follows the aspect ratio. "Exact" forces a size and crops the rest with smart cropping.
Need the same size for a whole batch? Drop them all at once; the settings apply to every image.
Try it: change the width on the right.
Optimize
Choose a quality from 1 to 100, or set a maximum file size in KB and let the tool find the highest quality that fits. Metadata such as GPS location is stripped by default.
Lossless mode for logos and screenshots, mozjpeg for JPG, and fine control over chroma subsampling, effort and sharpening under Advanced.
Try it: drag the line and move the quality slider.
Convert
Turn anything into JPG, PNG, WEBP or AVIF, or keep the original format. The format you pick stays selected for every image you add, no surprises.
WEBP is typically 25–35% smaller than JPG at the same quality and works everywhere; AVIF is smaller still for modern sites.
Try it: pick a format and watch the file size.
Crop
Open any image from the list and drag a crop box over it, free or locked to a ratio. Social presets for Instagram, Facebook, X, LinkedIn and YouTube set both the crop and the exact output size.
The crop only applies to that one image; everything else keeps following your global settings.
Try it: drag the box or its corners, or pick a preset.
Frequently asked questions
Does the text in my PDF stay sharp?
Yes. Only the images inside the PDF are made smaller; text, fonts and lines stay as they were. You can still select and search the text.
How much smaller will my PDF get?
Scanned documents and PDFs with photos often shrink by 50 to 90%. A text-only PDF is usually small already and barely shrinks.
How big can a PDF be?
Up to 25 MB and 500 pages per PDF. Merging works for up to 20 PDFs and 100 MB in total.
Can I compress a password-protected PDF?
No. Encrypted PDFs are not processed. Remove the password in your PDF program first.
Are my documents stored?
No. The PDF is processed in our server’s memory and deleted right after.
verklein.nu in Chrome
Resize and compress straight from your browser: open the side panel, or right-click any image on the web. Free, no account.