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The Coherent PDF Command Line Tools allow you to manipulate existing PDF files in a variety of ways. For example:
PDF Squeezer 3.10.4 中文破解版 Mac PDF文件体积压缩工具 复制链接. Squeezed light is produced by means of nonlinear optics. The most successful method uses degenerate type I optical-parametric down-conversion (also called optical-parametric amplification) inside an optical resonator.To squeeze modulation states with respect to a carrier field at optical frequency, a bright pump field at twice the optical frequency is focussed into a nonlinear crystal that is. Hydrofluoric HF F-7.2 x 10-4 3.14 Nitrous HNO2 NO2-4.0 x 10-4 3.39 Formic HCOOH HCOO-1.77 x 10-4 3.75 Lactic HCH3H5O3 CH3H5O3-1.38 x 10-4 3.86 Ascorbic (1) H2C6H6O6.
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- Merge PDF files together, or split them apart
- Encrypt and decrypt
- Scale, crop and rotate pages
- Read and set document info and metadata
- Copy, add or remove bookmarks
- Stamp logos, text, dates, page numbers
- Add or remove attachments
- Losslessly compress PDF files
The
cpdf
tool has been available commercially since 2007, and is widely used in industry and government. Now we're releasing two tools for free, the main program under a special not-for-commercial-use license, and a lossless PDF squeezer under the LGPL. If you like the tools and want to use them commercially, or need support, licenses are available from Coherent Graphics Ltd. Commercial use involves anything other than private, personal use. Charities andeducational institutions still require a license, but one may be obtained atgreatly reduced cost - ask us. If you're still not sure if you need a license, ask us.
Download binaries now for Windows, Mac, or Linux
Pre-built binaries are available for Windows, Mac OS 10.6 and later, Linux 32 bit Intel and Linux 64 bit intel.
Build from source
Look at the source repository for cpdf, or for the PDF squeezer. You'll need to install the OCaml toolchain, and a couple of simple dependencies, but it's simple to build.
User Manual
A comprehensive user manual for the PDF tools can be found as a PDF document, or browsable online. A paper copy can be obtained from Amazon for $9.99.
Examples
In all cases, on Microsoft Windows, substitute
cpdf.exe
for cpdf
.Select some pages from a file
in.pdf
and write to out.pdf
:Merge some files together:
Split a file into single-page files
page001.pdf
, page002.pdf
etc:Encrypt a file with 128 bit AES encryption with an owner password but blank user password:
Output some information about a file:
Pdf Squeezer 3 10 49
Output information about each page:
Scale pages to A4 paper: Apolloone photo video viewer 2 1 3.
Crop a file:
Add some text with page numbers:
Stamp one PDF file over each page of another:
Attach a file to page 5:
Combine several commands together using AND: flip a file vertically and stamp text, then encrypt.
Compress a file without loss of information:
Or, using the standalone PDF squeezer:
Support
If you discover a bug, you can raise an issue in our issue tracker, or email for support.
Please note, though, that we prioritise support for paying customers.
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FAQs
Q. My command works, but fails when I put it in a Windows Batch file.
A. Some
cpdf
commands use %
as a special character. Use %%
instead.Q. Is it any different from the commercial version?
A. The community release prints a message when run, and sets the Producer field to show it was the last program to touch the PDF.
Q. I want to express thanks for this free program, but I'm not a commercial user. What can I do?
A. You can buy a copy of the User Manual on Amazon for $9.99.