PDF圧縮 - 100%無料・オンライン - PDF24

Compress PDF - 100% free & online - PDF24 Compress PDF PDF compressor to reduce the size of PDF files quickly and easily Free Online No limits Secure PDF24 is free of charge No hidden costs 100% free thanks to advertising PDF24 is highly optimized so that advertising covers our expenses PDF24's apps are easy to use No installation required Supports your system PDF24 uses high-performance processing systems and your system will not be burdened PDF24 can be used without restrictions No registration required No subscription traps or forced premium versions No time restrictions, use all PDF24 features as often as you like Security is important at PDF24 SSL secured file transfer Servers are located in Germany Files are automatically deleted from the PDF24 server after one hour Drop here Choose files ... or drop files here By using this function, you accept our terms of use 4.9 ( 14,520 votes) Rated 4.92 out of 5 stars by 14520 users in the last 5 years. Using PDF24 is fun and you will never want to use any other tool again. Download Desktop App File protection is active File protection is active SSL secured file transfer Servers are located in Germany Files are automatically deleted from the PDF24 server after one hour DPI Image quality % Additional options Remove thumbnails Deduplicate streams Rasterize heavy graphics Subset embedded fonts Use modern image compression Convert images to grayscale Maximum Flate compression Flatten form Strip output intents Strip attachments Strip annotations Strip outline Strip metadata Strip structural information Compress Advertisement Advertisement Advertisement Advertisement 😀 100% free thanks to advertising Information Windows Linux MAC iPhone Android How to compress PDF files Select your PDF files which you would like to compress or drop them into the file box and start the compression. A few seconds later you can download your compressed PDF files. Adjustable quality You can adjust the compression quality so that you can tune the compression algorithm in order to get a perfect result. PDF files with images can be compressed better than PDF files with text only. Easy to use PDF24 makes it as easy and fast as possible for you to compress your files. You don't need to install any software, you only have to select your files and start the compression. Runs on your system The compression tool does not need any special system in order to compress your PDF files. The app is browser based and works under all operating systems. No installation required You do not need to download and install any software. PDF files are compressed in the cloud on our servers. The app does not consume your system resources. Secure online compression The compression tool does not keep your files longer than necessary on our server. Your files and results will be deleted from our server after a short period of time. Developed by Stefan Ziegler How it works Select files to compress using the file selection box. If necessary, adjust the settings such as DPI and image quality. Start compression afterwards. Finally, save compressed PDF files. What others are saying PDF files with images are often very large, too large to be sent by email. With this tool here I can often reduce the size of the PDF files considerably. A really simple and cool tool to compress PDF files. With this, I usually still get my PDF files a little smaller without any loss of quality. Questions and Answers How to compress a PDF to reduce it's size? Click in the file selection box at the top of the page and select the files to compress. Change the compression parameters if you want. Start the compression with the corresponding button. Finally, save the compressed files. What does compressing a PDF do? When reducing the file size of a PDF, various methods are used to make the file smaller. Depending on what data is contained in the PDF, the compression works well or less well. PDF files with e.g. images can be compressed well. PDF24 uses the following techniques to compress a PDF: Removal of font information that's not required for displaying the PDF. Reduction of the image size depending on the DPI parameter. Reduction of the image quality depending on the image quality parameter. PDF file changes and data compression of a structural nature. How do I reduce the size of a PDF without losing quality? Lossless PDF compression is possible with PDF24, but you can't expect a big reduction in file size in this mode. That's how it works: Click in the file selection box at the top of the page and select the files to compress. Change the compression mode to lossless compression and start compression with the corresponding button. Finally, save the compressed files. Why is my PDF so big? A large PDF file can be created if the PDF file contains images. This is usually the main reason for a PDF that is too large. A PDF file that contains only text is usually much smaller. If a PDF contains images, you can use PDF24 to make them very small by reducing the size and quality of the images. Does compressing a PDF reduce quality? The PDF24 compression tool has several modes. In normal compression mode, the quality and size of the images are reduced, as this has the greatest effect on the file size. Lossless compression can also be used, but has less impact. However, a reduction in quality is often not a problem. The question is more or less how much the quality can be reduced, which is still acceptable in terms of file size. Do PDFs compress well? Yes, if the PDF contains images, because these images can be further compressed and the image size can be reduced. PDF compression for PDF files without images works less well. How do I reduce the size of a PDF offline? Simply download the free and easy to use PDF24 Creator and install it. This software is an offline PDF solution that includes a PDF compression tool that is easy to use. Ask a new question Please rate this app Submit Please report problems here Please share PDF24 with friends Help our new, cool and free tools to grow! Write an article about our tools on your forum, blog or website. Alternative: PDF24 Creator Desktop software for Windows with similar functions PDF24 Creator More great tools