The pdf format is intended for the creation and storage in electronic form of various documentation (including e-books and presentations), as well as for preparing it for printing. Such files usually consist of text and graphics. In this case, a pdf document can contain not only images in raster or vector formats, but also multimedia inserts. In addition, the format supports font embedding. As a result, the pdf file may be too large.
Free ways to compress pdf file
For full-fledged work with pdf-files, the developer of the Adobe Systems format suggests using the Adobe Acrobat Pro program. The main disadvantage of this application is its high price. In the overwhelming majority of cases, the capabilities of free analogs are sufficient.
When creating a pdf file, use the standard reduction function. To do this, you need to open "Properties" - "General" - "Others" and tick the "Compress" option. The action is simple but effective.
PDF Compressor
The application has a user-friendly interface. Differs in high speed of work. Allows you to significantly reduce the size of the document without losing page quality. The program can perform batch processing of files, as well as create a compression queue. After processing the pages, PDF Compressor displays the elapsed time and compression ratio. Works on any version of Windows.
PDFtk
Sometimes, to reduce the size of a document, it is necessary to remove pages from it that do not contain important information. It's easy to do with the free PDFtk app. It is enough to open the file in the utility and, by double-clicking on the right column, indicate the page numbers that should be included in the final document. After that, it remains to click the Create PDF button. A new file will be created containing only the specified pages. If the document needs to be sent by e-mail, then in the same way you can divide it into several parts. The application has a graphical interface and a console line for advanced users.
Vector graphics take up more file space than raster graphics. You need to rasterize the vector image and insert it into PDF, reducing the resolution and adjusting the compression quality to an acceptable level. The file size will be reduced.
PrimoPDF
The program installs a virtual PDF printer into the system. To reduce the size of a pdf file using PrimoPDF, you need to:
1.open the document in any intended application;
2. in the "File" menu, select the "Print" item and set the PrimoPDF print tool;
3. go to the settings and adjust the required quality;
4. save the file to your computer.
The app does not contain ads and does not require registration.
How to reduce the size of a pdf document using online services
There are many online services with which you can significantly reduce the size of the pdf. The most famous is the convenient and fast service of smallpdf foreign developers. It is quite simple to work with it. You just need to drag the file into the dialog box and, after waiting for the end of compression, download the optimized document to your computer.
Of the Russian-language services, pdf-docs should be noted. When using it, it is proposed to select the compression ratio of the optimized document, marking one of three options: best quality, medium quality and best compression. In addition, using this service, you can convert files of other formats to pdf.
Reducing the size of pdf files with paid programs
Microsoft Office has a built-in PDF export feature. In this case, you can choose an optimization option: standard or minimum size. The last option should be selected to reduce the file size.
If you have Adobe Acrobat Pro installed on your computer, there are two ways to reduce the size of the pdf file:
1. The easiest is to open it, and then from the "File" menu select the function "Save As" - "PDF Reduced Size".
2.when saving a document, select the "Optimized PDF file" item and set the compression parameters by setting the methods for optimizing images, fonts, transparency. Then, using the "Discard objects" panel, determine which of them will be deleted.
Similar features are available in paid versions of programs such as NitroPDF or Foxit PDF Editor.
