VeryDOC Knowledge Base

To compress PDF and encrypt PDF, e.g., compress font of PDF, please feel free to refer to following paragraphs. 🙂

Our main processing tool is VeryDOC PDF Compressor, which is a professional command line application to help you compress files of PDF files in various aspects. For more information about this software, please visit its homepage from hyperlink above. 🙂 And here is quick download entrance of trial version below:

And after you extract content from downloaded zip file to your computer, you need to follow steps below to accomplish compressing PDF file and encrypt PDF file:

1. Open command prompt window

To open command prompt, please run cmd.exe or cmd in your computer so that command prompt could be opened on screen directly.

2. Compress file of PDF and encrypt PDF

For your convenience, you can refer to following examples to fulfill process one time:

pdfcompressor.exe –compressfonts –owner 897789 –user 987889 C:\in.pdf C:\out.pdf

pdfcompressor.exe –compressfonts –owner 897789 –user 987889 –perms 1 –keylen 128 C:\in\*.pdf C:\out\*.pdf

where you may need to know:

• -compressfonts: Compress fonts
• -owner <string>: Owner password to use for encrypting output PDF file
• -user <string>: User password to use for encrypting output PDF file
• -perms <int>: PDF security permissions to use for encrypting output
  file
• -keylen <int>: Defines the length (in bits) of the encryption key.
• pdfcompressor.exe: call executive file “pdfcompressor.exe” for running software
• C:\in.pdf: specify input PDF file
• C:\out.pdf: specify output PDF file

After all prepared work like above is done in your command prompt, you can make VeryDOC PDF Compressor to compress file of added PDF and encrypt PDF instantly. After a few seconds, this application can provide you with encrypted compressed PDF file added into targeting folder in your computer.

Finally, if you need to get full version of this software, please do not hesitate to click following icon:

And thank you for knowing how to use VeryDOC PDF Compressor to encrypt PDF file during compressing PDF through commands.

This article is about how to use VeryDOC PDF Compressor to compress PDF files and set color/grayscale/monochrome image compression flexibly through command line on Windows platforms.

VeryDOC PDF Compressor is powerful, so why not just visit its homepage from hyperlink above? And, next, for compressing images in PDF files can also help you compress PDF files, you are invited to know how to realize compressing PDF and edit color/grayscale/monochrome image compression: 🙂

Step1. Download software

Please firstly get ZIP package of VeryDOC PDF Compressor, then open it and extract its content to your computer directly. So trial version of this application can be yours from this moment on.

Step2. Open command prompt

After getting trial software, you need to run cmd.exe to open command prompt window so that you can input commands and parameters directly for process. 🙂

Step3. Compress files of PDF and set color/grayscale/monochrome image

In command prompt window, you can start to type commands and parameters like following examples:

pdfcompressor.exe -ci jpx -mi jbig2 C:\in.pdf C:\out.pdf

pdfcompressor.exe -ci jpx -gi jpx -mi jbig2 C:\in.pdf C:\out.pdf

pdfcompressor.exe –jbig2 –jpx C:\in.pdf C:\out.pdf

where you need to know parameters:

• -ci <string>: Set Color Image Compression, values: jpx, jpg, zip
• -gi <string>: Set Grayscale Image Compression, values: jpx, jpg, zip
• -mi <string>: Set Monochrome Image Compression, values: jbig2, jbig2l, fax, zip, rle
• -jbig2: Compress monochrome image streams with JBIG2 arithmetic
• -jpx: Compress color and grayscale image streams with JPEG2000 arithmetic

where you need to know directories:

• pdfcompressor.exe: call executive file “pdfcompressor.exe”
• C:\in.pdf: specify input PDF file
• C:\out.pdf: specify output PDF file

After you refer to one of examples above to type commands in your own command prompt, you can use VeryDOC PDF Compressor to compress file of PDF and set color/grayscale/monochrome image compression instantly. And later on, targeting compressed PDF file could be added into targeting folder. 🙂

For more articles about this software, please keep visiting here. Thank you for reading here about set color/grayscale/monochrome image compression to compress file of PDF through commands. At last, welcome to use full version of VeryDOC PDF Compressor.

This article aims to show you how to use VeryDOC PDF Compressor to downsample color/monochrome/grayscale images when compressing PDF files in Windows systems.

Here are steps to use VeryDOC PDF Compressor to downsample color/monochrome/grayscale images when compressing PDF file through command line and parameters:

1. Download trial version software

Please download ZIP package from following icon:

Then, you need to extract its content to your computer so that executive file could be used for process later. 🙂

2. Run cmd.exe in your computer

After you own trial version software, please run cmd.exe to open command prompt for typing commands and parameters later.

3. Use commands and parameters to compress PDF and downsample color/monochrome/grayscale images

After command prompt is opened, please refer to the following examples to compress files of PDF singly or in batches and downsample color/monochrome/grayscale images:

pdfcompressor.exe -ci jpx -mi jbig2 C:\in.pdf C:\out.pdf

pdfcompressor.exe -ci jpx -gi jpx -mi jbig2 C:\in.pdf C:\out.pdf

pdfcompressor.exe -ci jpg -cidown -cidownres 50 -gi jpg -gidown -gidownres 50 -mi fax -midown -midownres 50 C:\in.pdf C:\out.pdf

pdfcompressor.exe -ci jpg -cidown -cidownres 50 -cidowntype 1 C:\in.pdf C:\out.pdf

pdfcompressor.exe -gi jpg -gidown -gidownres 50 -gidowntype 1 C:\in.pdf C:\out.pdf

pdfcompressor.exe -mi fax -midown -midownres 50 -midowntype 1 C:\in.pdf C:\out.pdf

where parameters:

•   -ci <string>: Set Color Image Compression, values: jpx, jpg, zip
  -cidown: Downsample color images
  -cidownres <int>: Set Color Image Resolution
  -cidowntype <int>: Downsample type for color images:
  -cidowntype 0: default
  -cidowntype 1: Subsample
  -cidowntype 2: Average
  -cidowntype 3: Bicubic
•   -gi <string>: Set Grayscale Image Compression, values: jpx, jpg, zip
  -gidown: Downsample Grayscale images
  -gidownres <int>: Set Grayscale Image Resolution
  -gidowntype <int>: Downsample type for Grayscale images:
  -gidowntype 0: default
  -gidowntype 1: Subsample
  -gidowntype 2: Average
  -gidowntype 3: Bicubic
•   -mi <string>: Set Monochrome Image Compression, values: jbig2, jbig2l, fax, zip, rle
  -midown: Downsample Monochrome images
  -midownres <int>: Set Monochrome Image Resolution
  -midowntype <int>: Downsample type for Monochrome images:
  -midowntype 0: default
  -midowntype 1: Subsample
  -midowntype 2: Average
  -midowntype 3: Bicubic

where directories:

• pdfcompressor.exe: call executive file “pdfcompressor.exe”
• C:\in.pdf: specify input PDF file
• C:\out.pdf: specify output PDF file

If you want batch conversion, just change source directory and targeting directory as ones with “*”, for instance:

pdfcompressor.exe -ci jpg -cidown -cidownres 50 -cidowntype 1 C:\*.pdf C:\*.pdf

where:

• C:\*.pdf: specify dozens of input PDF files
• C:\*.pdf: specify dozens of output PDF files

Finally, after you singly or batch compress files of PDF and downsample color/monochrome/grayscale images through commands and parameters, targeting compressed PDF files could be produced into destination folder, which have definite smaller size, etc..

In the end, as you see, this is the end of description about how to use VeryDOC PDF Compressor to downsample color/monochrome/grayscale images when compressing PDF files singly or in batches. For more questions, welcome to leave your comments here. And to get full version of this application, please click following icon:

This article aims to show you how to use VeryDOC PDF Compressor to singly or batch compress PDF files through command line on Windows platforms.

VeryDOC PDF Compressor is a professional tool for Windows users to compress files of PDF in various ways, e.g., desampling, compression modes, etc.. For more knowledge of this software, please go to its homepage from hyperlink above. 🙂

And then, want to singly or batch compress files of PDF by yourself later? Then, please download ZIP file firstly from below:

Then, after you extract content of this ZIP file to your computer, trial version of this software could be used in your own computer.

And then, here are steps to use VeryDOC PDF Compressor to singly or batch compress PDF files through commands:

1. Open command prompt window

You need to run cmd.exe to open command prompt window so that you can type commands in it for process later.

2. Singly or batch compress PDF files

Here are related examples for you to refer to below:

pdfcompressor.exe C:\in.pdf C:\out.pdf

pdfcompressor.exe C:\in\*.pdf C:\out\*.pdf

The first example is to help you know how to singly compress file of PDF , and the second one is to help you know how to batch compress files of PDF, where you may need to know:

• pdfcompressor.exe: call executive file “pdfcompressor.exe” for running software 
• C:\in.pdf: specify input PDF file
• C:\out.pdf: specify output single PDF file
• C:\in\*.pdf: specify dozens of input PDF files
• C:\out\*.pdf: specify dozens of output PDF files

After all commands are typed in there, please use VeryDOC PDF Compressor to compress files of PDF singly or in batch. Then, targeting PDF files with compression could be added into targeting folder. 🙂

Besides basic compression of PDF files, this software provides you with more compression modes in various aspects. To know other functions about this application, welcome to keep visiting here. :), and for full version of VeryDOC PDF Compressor, please do not hesitate to click following icon: