Please find below answers to the most frequent pre-sales, sales and technical questions asked by the PDF Reducer users.

To get started, download the software from the website here.
You will need to choose the right edition: if you want to test PDF Reducer, download the Cloud Edition.
If you have purchased a commercial edition, download the corresponding package: On-Premises Desktop or On-Premises Server.
Once you’ve downloaded the software, you just need to start the installer and follow the installation process.
Voilà !
Windows Vista or higher. PC with at least 512 MB RAM.
To have a quick overview of the differences between the Cloud and On-Premises Editions, you can check the comparison matrix.
The Cloud edition pricing model is token-based: several monthly plans are available, each with a different amount of tokens available (see our pricing page).
  • when the file is loaded: 1 token is charged per 10 MB
  • 5 tokens are charged to compress the file
  • if the MRC compression option is enabled, 4 additional tokens are charged
  • 1 token is charged to save the file
In other words, for a file below 10 MB, either 7 (without MRC compression) or 11 tokens (with MRC compression) are charged.
The On-Premises Editions of PDF Reducer are distributed in two versions: one for desktop and one for server. If you need to use PDF Reducer On-Premises Edition on a single computer, the Desktop version is for you. Companies and organizations that want to use PDF Reducer on one server machine can choose the Server version.
The download package of the On-Premises Edition includes a 30 days free trial. The free trial starts at the first use of the software. When the trial expires you will need to enter a commercial key to keep using the product. If you need an extension of the evaluation, please send us a message here and we will send you a trial key. The free trial will cause your pages to have a watermark on them. When purchasing the On-Premises Edition your pages will no longer be watermarked upon compression.
Owners of a commercial edition can contact the technical team and get priority support by opening an account on the Helpdesk.
ORPALIS PDF Reducer Professional can be fully automated through command line interface.
Bellow you will find all supported parameters of the latest available version.

pdfreducer.exe [parameters]
pdfreducer.exe /IF < input format(s)>
Parameters can be:
  • /Min to start application with minimized window state (since PDF Reducer 1.1.7)
  • /P < input folder>
  • /F < input file(s)> (note: each file path is delimited by the vertical bar character '|')
  • /D < destination folder>
  • /T < number of threads>
  • /NS (don't process sub folders)
  • /DC to disable the "color detection" option
  • /DR to disable the "re-compress images" option
  • /DU to disable the "discard unused objects" option
  • /DD to disable the "downscale images" option
  • /Q (0: low, 1: Medium, 2: High, 3: Very high)
  • /R (image downscale resolution)
  • /DJ2K to disable the "JPEG 2000 compression" option
  • /RF to remove form-fields
  • /RA to remove annotations
  • /RB to remove bookmarks
  • /RE to remove embedded files
  • /linearized to enable fast web view
  • /MRC to enable MRC compression (since PDF Reducer 2.0.2)
  • /KT: to keep the original last edition and access time of the input files
  • /IF: to choose the document formats to process (note: each document format is delimited by the vertical bar character '|'). Supported formats are: ICO, BMP, WBMP, JPEG, GIF, PNG, TIFF, FAXG3, EXIF, EMF, WMF, JNG, KOALA, IFF, MNG, PCD, PCX, PBM, PBMRAW, PFM, PGM, PGMRAW, PPM, PPMRAW, RAS, TARGA, PSD, CUT, XBM, XPM, DDS, HDR, SGI, EXR, J2K, JP2, JBIG, PICT, RAW, WEBP, DICOM, JBIG2, MEMORYBMP, PDF, SVG, RTF, DOCX and TXT.
  • /LOG: to export logs to destination folder
  • /DW: to disable warning when input and output directory are identical
  • /DO: to delete the original files when they are successfully reduced
  • /RH: to remove the hyperlinks from a document

Example 1: reducing C:\myPdfs\input\file1.pdf and C:\myPdfs\input\file2.pdf using 2 CPU threads and saving them to C:\myPdfs\output:
pdfreducer.exe /F "C:\myPdfs\input\file1.pdf|C:\myPdfs\input\file2.pdf" /D "C:\myPdfs\output" /T 2
Example 2: reducing all documents (including sub-folders) available C:\myDocuments using 8 CPU threads:
pdfreducer.exe /P "C:\myDocuments" /D "C:\myDocuments" /T 8

The command line feature is included in the On-Premises Editions (Desktop and Server).
To get a quote, please use the Quick Contact Form available on our website.
Our sales team will be happy to help.
To place an order you have two possibilities: you can order directly on the website via the online store, or you can use the Quick Contact Form to get a quote and the corresponding banking information to make a wire transfer.
For volume license requests, please use the Quick Contact Form to send your information and the sales team will issue a quote tailored to your needs.
ORPALIS PDF Reducer is powered by the GdPicture.NET PDF SDK.
It includes everything you need to view, write, convert, scan, print, compress, collaborate, analyze, and secure PDF documents.
Thousands of developers worldwide integrate GdPicture.NET into their desktop, web, and mobile applications.