You can rest assured that your files will be downloaded securely over an encrypted connection. They will be permanently deleted after processing.

To upload files from your computer, click the Upload PDF File button and select the files you want to edit. Or you can just drag and drop files onto the page, whichever works best for you.

You can also download files from Dropbox, Google Drive, or the website where your files are located. All you need to do is expand the “Upload PDF File” dropdown and select the files.

1. Compress PDF files

If you want to quickly reduce the file size without making any changes, just click the “Compress PDF” button and download the file after the process is complete.

The compression process will do the following:

• Optimizing images
• Removes unnecessary fonts and images

1. Image quality configuration

Typically, images are optimized with a JPEG image quality of 65%. However, if you want to get images more High Quality, you can customize them by choosing “Good” or “Best” in the image quality category shown below:

1. Image Resolution Configuration

The standard resolution for images is 72 PPI. But if you want a higher resolution, all you have to do is under the category of image resolution, select the resolution you want between 144 ppi, 228 ppi, or 720 ppi.

1. Convert images to grayscale

Another way to reduce the size of your PDF document is to convert all color images to grayscale. All you have to do is select “grayscale” from the Image Conversion category.

1. Compression rate option

If the PDF contains many images, it may take a while for the compression process to complete. Smaller images don't really have that effect on the overall document, so we really want to optimize for larger images. To save time, select Faster as the compression speed so that smaller images are skipped and only larger images are compressed.

1. Download Compressed PDF Document

Once you've chosen the format you want, just click “Compress PDF” and upload your document when the process is complete.

Good day!

PDF files seem to be good for everyone, but they have one cornerstone ... The fact is that the size of some PDF-focks is far from "ideal", often when they weigh even 100 ÷ 500 MB, sometimes it reaches 1 GB! Moreover, this file size is not always justified: i.e. it doesn't have some very high-precision graphics that take up so much space.

Of course, when you are dealing with such a size, it becomes difficult to transfer it to other PCs, tablets, phones. (for example, the phone may simply not have enough memory for a dozen of these files!) .

In such cases, you can "slightly" reduce the size of the PDF by compressing it. By the way, you can perform compression different ways... Actually, this is what today's article will be about ...

By the way! If you remove some pages from a PDF document, then you can reduce its size due to this. If this option suits you, then I recommend this note:

Method number 1: archiving

Perhaps the simplest and most obvious is to add PDFs to the archive. Thus, sometimes, it is possible to significantly reduce the size they occupy. In addition, one archive file is much faster and more convenient to copy from one PC to another. (rather than a dozen or even a hundred PDF-foci) .

Addition! The best free archivers for Windows -

To send a file to the archive - just 1-2 mouse clicks are enough. For example, in such a popular archiver as 7-Zip (you can also find it in the link above) : just right-click on the file and select "Add to archive ..." ... See screenshot below.

Actually, my file was compressed almost 3 times! See example below.

Advantages of the method:

• after unpacking the archive, the PDF file does not lose its quality;
• ZIP archive formats can open most modern ones;
• one archive file (within which there are hundreds of PDFs) is copied much faster than doing it with the same files without adding them to the archive.

Disadvantages of the method:

• to open a file, you need to extract it from the archive (and not on all PCs / phones / tablets the required archiver can be installed);
• not all files lend themselves equally well to compression: one can be compressed very decently, the other by 0.5% ...
• when choosing some archive formats - it may take a long time to compress the files.

Method number 2: compression using quality reduction (DPI)

DPI is the number of dots per inch. The more dots per inch, the higher the quality of the displayed image (and the more the file weighs). Naturally, when re-saving a PDF file, you can specify a new number of dots per inch (DPI) and thereby reduce the file size (along with its quality).

However, I would like to point out right away that not always with decreasing DPI, the quality of the picture deteriorates (in many cases, you won't notice the difference by eye!).

You can do a similar procedure in many programs : Adobe Acrobat (not to be confused with Adobe Reader), Fine Reader, Cute PDF Writer, Libre Office, etc. Below I will give a couple of free examples ...

1) Libre Office ()

Nice and free office suite (I previously recommended it as an alternative to MS Office). In its arsenal has a program DRAW, which can easily and easily make changes to PDF (including DPI change). Let's take a closer look ...

To start DRAW - start Libre Office, and select "Picture DRAW" from the menu.

A window will open with many options for saving. Here you can change the compression quality, resolution (DPI) and other parameters. In general, I have highlighted the most necessary in the screenshot below.

After setting the parameters - click the export button to create a new file.

Fast, simple and easy! Is not it?

2) CutePDF Writer ()

This free program after installation "creates" a separate special line when printing a document (with the necessary properties for compression) ...

Those. install it, then open some PDF file in, say, Adobe Reader (you can also use any other PDF reader) and press "Print" (combination Ctrl + P).

Then choose the line " CutePDF Writer", and open its" Properties ".

CutePDF Writer Properties

Then you need to open the print quality tab and go to "Advanced".

Here you can set the print quality in DPI (and other parameters).

NOTE.

By the way, you need to install both files that are available on the official website of the program!

Advantages of the method:

• we do not lose compatibility (the file remains the same PDF);
• the operation is pretty fast;
• the operation "to change DPI" can be carried out in dozens of different programs.

Cons of the method:

• in some cases, the quality drops dramatically (for example, if you are dealing with schemes and high-quality portfolios - most likely this option will not work).

Method number 3: converting to DjVU format

DjVU format, on average, provides stronger compression than PDF. And I must admit that DjVU is one of the few formats that really competes with it.

To convert from PDF to DjVU, in my opinion, it is most preferable to use one small utility - PdfToDjvuGUI .

PdfToDjvuGUI

Of. website: http://www.trustfm.net/software/utilities/PdfToDjvuGUI.php

Note: please note that the utility sometimes incorrectly reads the "names" of files written in Russian.

PDF to DjVU - small utility

Using it is very simple: just add desired file(Add PDF), set the settings (you can leave nothing) and press the button "Generate DjVU"... A "black" window should appear for a while, after which the program will inform you that the file has been re-converted.

By the way, the program will place the DjVU file in the same folder where the original PDF was located. See the screenshot below for an example. Without changing the quality (and the program allows you to change DPI), we managed to reduce the file space occupied by almost 2 times!

PS

Below are a few more online services that can perform a similar conversion operation.

Advantages of the method:

• maximum file compression (i.e. saving disk space!);
• the file can be immediately opened in the reader, just like you do with PDF (i.e. it is not an archive).

Disadvantages of the method:

• large files require significant conversion time;
• during conversion, the quality may be "lost" (therefore, check important graphs manually, how they were compressed);
• DjVU format supports fewer programs than PDF.

Method number 4: using online tools

An excellent site for fast compression and conversion from one format to another. Files up to 20-30 MB in size are processed literally within 10-15 seconds! The service does not touch the markup of the document, links, menus, and other elements. Compression takes place at the expense of graphics (that is, the PDI parameter).

Another one-stop service to quickly convert PDF to DjVU, or to compress PDF without changing the format. The result can not only be downloaded to your PC, but also immediately sent to a cloud drive: Google Drive, Dropbox ...

There are 3 compression levels available on the service: minimal, normal and extreme. It works very quickly, processes files up to 3-040 MB in 5-10 seconds. (at least that was the case with my ten test files) .

The files were compressed // Service "I love DPF"

I also note that on this service you can split a PDF file into several parts, convert it to other formats, combine several PDFs, etc. In general, it is a rather multifunctional service, I recommend it!

Advantages:

• it is unnecessary to install any programs on your computer;
• services can be used even from mobile devices;
• as a rule, compression of small files on services is faster.

Disadvantages:

• confidentiality (I think not everyone decides to send some of their documents to an unfamiliar service);
• the need to upload / download files to the service (if the Internet is not very fast and there are a lot of files, this will turn into a "head" pain).

Additions on the topic are welcome ...

Have you created a PDF document but it is very large? Are there too many documents on the media and they take up a lot of memory? You need to send a message, but the document is too large and takes a long time to load, or is it not possible at all due to the size of the document?

Today this problem will be solved, several solutions will be considered. Most of the methods mentioned below are possible only in the software shell - "Acrobat DC" by Adobe, which requires installation on a computer. This software is paid, but it is possible to use the test version for 30 days. But other options will also be considered, i.e. without using software"Acrobat DC" from Adobe.

1. How to reduce pdf file size using online services

If you don't want to download and install anything, there is a great opportunity to compress a PDF file online. Compressing documents online is convenient, reliable and fast. There are many services on the Internet that can help you reduce the memory footprint of a PDF file for free. Some of them are presented below:

1.1. SmallPDF - online compression service.pdf

1. Open the file you want to compress using Acrobat.

3. In the next window "Optimize PDF" you need to select the item "Estimate the use of space" in order to know which parts of the document take up the most space in the document. The calculation is carried out in percent and bytes. Taking into account the information on the assessment of the occupied space, and having made a conclusion about what needs to be compressed and what is not, you can proceed to direct compression of the file. To do this, in the upper left part of the window with the left mouse button you need to select the parameter items, and in the upper right part you need to change the settings themselves. After completing all the necessary settings, the file should be saved.

The use and distribution of unlicensed software can create additional difficulties in the operation of your PC, beware of such programs and sites. Enjoy your use!

If you've often come across PDF files, then you know that sometimes they can be quite weighty due to images or other graphics. Fortunately, there are now many ways to compress any type of file, including PDF documents.

In this article, I'll show you a couple of ways to reduce the size of PDF files. If you have Adobe Acrobat (not free), this is much easier, but we will only use the free methods.

Method 1 - SmallPDF.com

This is the easiest way to shrink your PDF. Using this free service can also convert PDF to: Word, PTT, JPG. In general, the functionality is very extensive, but we will return to our goal.

So, go to the site smallpdf.com. Next, at the bottom of the screen, select the language.

Next, click on “ Compress PDF».

Now you need to either drag your document to the appropriate area, or select it in the standard way.

Then we wait a few seconds while the file is uploaded to the server and compressed. When finished, you will receive the following message (see screenshot below).

To download the already reduced PDF file, click the button “ You can save the file". By the way, the service works with Google and DropBox cloud storage, which is very convenient. From the clouds, you can upload files, as well as move already compressed documents into them.

As you can see in the screenshot below, using this online service, it was possible to reduce the file size from 5.46 MB to 3.1 MB. Good enough compression, and it's free

Among others online services I would also recommend using pdfcompressor.com/ru/ or convertio.co/en/compress-pdf/. I especially liked the last service, if you select a high compression ratio in it, then the document size will decrease by 15-20%, although there is no particular loss of quality.

Method 2 - PDF Compressor Program

A wonderful free program for compressing documents in PDF format. You can download it on the official website pdfcompressor.org. Install and start working with the program. First you need to download the file, for this click on the button " Add file"Or just drag the PDF to the center area of ​​the window.

Then click on the button " Start Compression". After 10-15 seconds we will get the result.

The result did not comfort me, since my document was compressed by only 1 KB. But if you work with files over 20 MB, then PDF reduction occurs by 30-40%.

The good thing about compression with PDF Compressor is that the document does not lose quality. It is also useful that in this program you can work with PDF documents in batch mode, compressing simultaneously 100 or more files.

Method 3 - Free PDF Compressor Program

Free and easy to use program. You can download it at freepdfcompressor.com. After installation, go directly to compression.

We load the document by clicking on the button " Browse"On the first line. In the second line, specify the path where it will be saved compressed file PDF.

Next, select the compression format. Of the five presented, I recommend installing “ Printer ...". In this mode, compression occurs with minimal loss of quality (especially my observation).

Now you just have to click on the button " Compress»And wait for the program to finish processing each page of your document.

Compressing PDF files is not as difficult as it might seem at first glance. There are a number of programs with which it is possible to perform these actions quickly and easily. It is about them that will be discussed in this article.

Advanced PDF Compressor provides the user with the ability to reduce the size of the required PDF document. Here you can clearly see how much this file has been reduced. Also, thanks to Advanced PDF Compressor, you can convert images into one or several such documents, or group any number of PDF files into one. A significant difference from other similar programs is the ability to create profiles with different settings, which, in turn, simplifies its use by several people.

Free PDF Compressor

Free PDF Compressor is a free software tool that can only reduce the size of the specified PDF document. For these purposes, there are several preset settings that can be selected based on the required quality. Thus, the user is able to give the PDF-file the quality of a screenshot, an e-book, and also prepare it for color or black-and-white printing.

FILEminimizer PDF

FILEminimizer PDF is a simple and easy-to-use program that does an excellent job of compressing PDF files. For these purposes, the user is offered four template options. If none of them is suitable, you can use the settings and set your level. In addition, it is the only product that provides the ability to export a compressed document straight to Microsoft Outlook for later sending by email.

CutePDF Writer

CutePDF Writer is a free printer driver that is designed to convert any document to PDF. In addition, the program is capable of compressing PDF files. To do this, go to the advanced settings of the printer and set the print quality, which will be lower than that of the original. Thus, the user will receive a PDF document with a significantly smaller size.

This article contains the best software tools with which you can significantly reduce the size of the required PDF document. Unfortunately, none of the programs considered has been translated into Russian, but despite this, working with them is very simple and convenient. You just have to decide which solution to use, because each has its own unique capabilities.