Comprimez le PDF

Reduissez la taille de votre PDF

Traînez & déposez les fichiers n'importe où sur la page pour télécharger
Choisir les fichiers PDF

Les fichiers restent privés. Supprimés automatiquement après 5 heures.
Service gratuit pour les documents jusqu'à 200 pages ou 100 Mb and 3 tasks per hour.

Rather work offline? Try Sejda Desktop

How To Compress PDF Files or Reduce the Size of Your PDF Files

Below we show how to shrink one or multiple PDF files to reduce their file size.

1. Upload your files

Files are uploaded over an encrypted connection. They stay safe and private. Once compressed, they are deleted.

Rather not upload your files and work with them on premise?
Use Sejda Desktop. Offers same features as the online service, and the files are processed locally.

Click Upload PDF files and select files from your local computer. Folders can be selected as well. Dragging and dropping files to the page also works.

Tip: Dropbox or Google Drive files

You can pick PDF files from Dropbox or Google Drive too. Expand the Upload PDF files dropdown and select your files.

2. Comprimez le PDF

Click the Compress button and thenDownload your compressed PDF. Or, click on the More options button for advanced settings.

The compression algorithm does the following:

  1. Optimizes images
  2. Discards alternate images
  3. Discards piece info, spider info, threads, thumbnails and structure tree
  4. Removes unused fonts, images, etc.

Configure image quality

Images are optimized and saved with a JPEG image quality of 65%.

That is great for most scenarios. But, if your need it you can configure a better quality for the optimized images (even if the PDF size will be larger).

Under image quality select Good (85%) or Best (100%).

Image resolution (PPI)

Using the standard settings images are optimized to a 72 PPI resolution.

Working in a scenario where higher image resolution is needed? Click More options, then select 144 ppi, 288 ppi or 720 ppi as the maximum image PPI resolution.

Grayscale images

To lower the size of your PDF further and have a lot of images one of the options to consider is converting images to black and white only.

Here's an example of a grayscale converted image:

To enable this option select grayscale as image conversion.

Faster PDF compression

Processing each image takes time. A document with many images will take longer to compress.

Compressing smaller images has little effect over the overall document size. The larger images are the real target. To speed up compressing the PDF choose Faster and we'll skip smaller images and only compress the larger ones.

Ready to compress your files? Let's go!

Compress PDF files online