How to maintain image quality with PS export PDF

How to export PDFs that maintain image quality through Photoshop? Select the ZIP compression algorithm or the uncompressed image. Set resolution according to use (printing: 300dpi; network: 72dpi). Check Embed Profile to ensure color consistency. Before exporting, convert the image to CMYK mode (print). Appropriately increase image resolution to reduce information loss. Adjust resolution and compression ratio according to use: Network display can be reduced, printing needs to be kept high.

Photoshop exports PDFs to maintain image quality, which is a cliché and a headache for many friends. After all, after working hard to edit the picture, I finally exported a vague PDF. It felt even more uncomfortable than eating a fly! So, today we will talk about this, from the principles to operations, and then to some tips, so as to make you fully master this technique.

Many friends think that just use Photoshop's "Save As" function and select PDF format, just choose the PDF format. But in fact, it is like cutting tomatoes with a kitchen knife. Although it can be cut, it is a different story. Photoshop has many PDF export options, and different settings will directly affect the quality of the final image. The most critical setting is the image compression algorithm and resolution.

Let’s talk about the compression algorithm first. Photoshop provides a variety of options, such as JPEG, ZIP, etc. JPEG compression ratio is high, the file is small, but the image quality loss is also large, making it easy to have mosaics. The ZIP compression ratio is low and the files are large, but the image quality is maintained relatively well. Therefore, if your image details are very important, such as high-definition photos and fine illustrations, you must choose ZIP compression, or simply choose not to compress. Remember, the "uncompressed" mentioned here means that the image itself is not compressed, rather than the PDF file not compressed. The PDF file itself will still be compressed for a certain amount, but will not be compressed lossily on the image itself.

Let’s talk about resolution. The higher the resolution, the clearer the image and the larger the file. If your PDF is for printing, the resolution is best set at 300dpi or even higher. If it is used for network display, setting 72dpi is enough. Don't set the resolution too low in order to save space, and the final result will be terrible. Many friends tend to ignore the resolution settings and directly use the default values, which result in blurring of the image.

The operation steps are actually very simple: in Photoshop, click "File" -> "Export" -> "Export as PDF". In the dialog box that pops up, you will see the settings options for "Compression" and "Resolution". Choose the right compression algorithm and resolution according to your needs. In addition, you can also check "Embed Profile", which can ensure that your image color displays consistently on different devices.

In addition to these core settings, there are some tips to help you improve the image quality of your PDF. For example, before exporting, you can convert your image to CMYK mode, which is very important for printing. For example, the resolution of the image can be appropriately improved and then exported, which can reduce information loss.

Finally, I will give you some suggestions for different office scenarios. If it is a PDF used for network display, the resolution and compression ratio can be appropriately reduced to reduce file size and improve loading speed. If it is a PDF for printing, high resolution and lossless compression must be guaranteed to ensure printing effect. Remember, choosing the right parameters is more important than blindly pursuing high resolution. Only by fully understanding the role of each parameter can you export high-quality PDFs so that your works can achieve the best results in any scenario.

The above is the detailed content of How to maintain image quality with PS export PDF. For more information, please follow other related articles on the PHP Chinese website!