VeryPDF Knowledge Base

Customer Inquiry

Question:
Dear VeryPDF Team,

We recently purchased a developer license for the VeryPDF TIFF Toolkit and would like to embed the license into the software. Our goal is to use a command-line request to deploy the software across multiple computers simultaneously using a PowerShell script.
Could you please provide guidance on how to achieve this?

Thank you.
Customer

---

VeryPDF Response

Thanks for your message. You can download and install VeryPDF TIFF Toolkit from the following web page:

https://www.verypdf.com/tifftoolkit/

You can also download and install it directly from the URL below:

https://www.verypdf.com/dl.php?file=verypdf-tifftoolkit.exe

After installation, please go to the "C:\Program Files (x86)\VeryPDF TIFFToolkit" folder on your system. You will be able to find the following EXE files. You can include these EXE applications in your software and call them using the CreateProcess() or Shell() function easily:

• tiff2bw.exe

• tiffcmp.exe

• tiffcp.exe

• tiffdump.exe

• tiffinfo.exe

• tiffsplit.exe

Deploying VeryPDF TIFF Toolkit via PowerShell

To install and deploy the software across multiple computers using a PowerShell script, follow these steps:

1. Download the Installer: Use PowerShell to download the software installer to each target machine.

2. Silent Installation: Execute the installer in silent mode to automate the installation process.

3. Verification: Ensure the software has been installed correctly and check if the EXE files are present in the designated directory.

Example PowerShell Script for Deployment

$installerUrl = "https://www.verypdf.com/dl.php?file=verypdf-tifftoolkit.exe"
$installerPath = "C:\Temp\verypdf-tifftoolkit.exe"
$installDir = "C:\Program Files (x86)\VeryPDF TIFFToolkit"

# Download the installer
Invoke-WebRequest -Uri $installerUrl -OutFile $installerPath

# Install the software silently
Start-Process -FilePath $installerPath -ArgumentList "/S" -Wait

# Verify installation
if (Test-Path "$installDir\tiff2bw.exe") {
    Write-Host "Installation successful!"
} else {
    Write-Host "Installation failed."
}

Command Line Options for TIFF Toolkit

The following are the command-line options for the VeryPDF TIFF Toolkit utilities:

tiff2bw.exe

usage: tiff2bw [options] input.tif output.tif
 -R %           use #% from red channel
 -G %           use #% from green channel
 -B %           use #% from blue channel
 -r #           make each strip have no more than # rows
 -c lzw[:opts]  compress output with LZW encoding
 -c zip[:opts]  compress output with deflate encoding
 -c packbits    compress output with PackBits encoding
 -c g3[:opts]   compress output with CCITT Group 3 encoding
 -c g4          compress output with CCITT Group 4 encoding
 -c none        no compression

tiffcmp.exe

usage: tiffcmp [options] file1 file2
 -l             list each byte of image data that differs between files
 -z #           list specified number of bytes that differ between files
 -t             ignore differences in directory tags

tiffcp.exe

usage: tiffcp [options] input... output
 -a             append to output instead of overwriting
 -o offset      set initial directory offset
 -p contig      pack samples contiguously (e.g. RGBRGB...)
 -p separate    store samples separately (e.g. RRR...GGG...BBB...)
 -s             write output in strips
 -t             write output in tiles
 -i             ignore read errors

tiffdump.exe

usage: tiffdump.exe [-h] [-o offset] [-m maxitems] file.tif ...

tiffinfo.exe

usage: tiffinfo [options] input...
 -D             read data
 -i             ignore read errors
 -c             display data for color response curve
 -s             display strip offsets and byte counts
 -z             enable strip chopping

tiffsplit.exe

usage: tiffsplit input.tif [prefix]

By using the above PowerShell script, you can efficiently deploy the VeryPDF TIFF Toolkit across multiple computers while ensuring the embedded license remains intact.

More details on TIFF Command Line Tools in the VeryPDF TIFF Toolkit,

✅ tiff2bw

Synopsis

tiff2bw [ options ] input.tif output.tif

Description

tiff2bw converts an RGB or Palette color TIFF image to a greyscale image by combining percentages of the red, green, and blue channels. By default, output samples are created by taking 28% of the red channel, 59% of the green channel, and 11% of the blue channel. To alter these percentages, the -R, -G, and -B options may be used.

Options

-c compress

Specify a compression scheme to use when writing image data: -c none for no compression, -c packbits for the PackBits compression algorithm, -c zip for the Deflate compression algorithm, -c g3 for the CCITT Group 3 compression algorithm, -c g4 for the CCITT Group 4 compression algorithm, -c lzw for Lempel-Ziv & Welch (the default).

-r striprows

Write data with a specified number of rows per strip; by default the number of rows/strip is selected so that each strip is approximately 8 kilobytes.

-R redperc

Specify the percentage of the red channel to use (default 28).

-G greenperc

Specify the percentage of the green channel to use (default 59).

-B blueperc

Specify the percentage of the blue channel to use (default 11).

✅ tiffcmp

Synopsis

tiffcmp [ options ] file1.tif file2.tif

Description

tiffcmp compares the tags and data in two files created according to the Tagged Image File Format, Revision 6.0. The schemes used for compressing data in each file are immaterial when data are compared-data are compared on a scanline-by-scanline basis after decompression. Most directory tags are checked; notable exceptions are: GrayResponseCurve, ColorResponseCurve, and ColorMap tags. Data will not be compared if any of the BitsPerSample, SamplesPerPixel, or ImageWidth values are not equal. By default, tiffcmp will terminate if it encounters any difference.

Options

-l

List each byte of image data that differs between the files.

-z number

List specified number of image data bytes that differs between the files.

-t

Ignore any differences in directory tags.

Bugs

Tags that are not recognized by the library are not compared; they may also generate spurious diagnostics.

The image data of tiled files is not compared, since the TIFFReadScanline() function is used. An error will be reported for tiled files.

The pixel and/or sample number reported in differences may be off in some exotic cases.

✅ tiffcp

Synopsis

tiffcp [ options ] src1.tif … srcN.tif dst.tif

Description

tiffcp combines one or more files created according to the Tag Image File Format, Revision 6.0 into a single TIFF file. Because the output file may be compressed using a different algorithm than the input files, tiffcp is most often used to convert between different compression schemes.

By default, tiffcp will copy all the understood tags in a TIFF directory of an input file to the associated directory in the output file.

tiffcp can be used to reorganize the storage characteristics of data in a file, but it is explicitly intended to not alter or convert the image data content in any way.

Options

-a

Append to an existing output file instead of overwriting it.

-b image

subtract the following monochrome image from all others processed. This can be used to remove a noise bias from a set of images. This bias image is typically an image of noise the camera saw with its shutter closed.

-B

Force output to be written with Big-Endian byte order. This option only has an effect when the output file is created or overwritten and not when it is appended to.

-C

Suppress the use of "strip chopping" when reading images that have a single strip/tile of uncompressed data.

-c

Specify the compression to use for data written to the output file: -c none for no compression, -c packbits for PackBits compression, -c lzw for Lempel-Ziv & Welch compression, -c zip for Deflate compression, -c lzma for LZMA2 compression, -c jpeg for baseline JPEG compression, -c g3 for CCITT Group 3 (T.4) compression, -c g4 for CCITT Group 4 (T.6) compression, or -c sgilog for SGILOG compression.

By default tiffcp will compress data according to the value of the Compression tag found in the source file.

The CCITT Group 3 and Group 4 compression algorithms can only be used with bilevel data.

Group 3 compression can be specified together with several T.4-specific options:

• 1d for 1-dimensional encoding,

• 2d for 2-dimensional encoding, and

• fill to force each encoded scanline to be zero-filled so that the terminating EOL code lies on a byte boundary.

Group 3-specific options are specified by appending a :-separated list to the g3 option; e.g. -c g3:2d:fill to get 2D-encoded data with byte-aligned EOL codes.

LZW, Deflate and LZMA2 compression can be specified together with a predictor value. A predictor value of 2 causes each scanline of the output image to undergo horizontal differencing before it is encoded; a value of 1 forces each scanline to be encoded without differencing. A value 3 is for floating point predictor which you can use if the encoded data are in floating point format. LZW-specific options are specified by appending a :-separated list to the lzw option; e.g. -c lzw:2 for LZW compression with horizontal differencing.

Deflate and LZMA2 encoders support various compression levels (or encoder presets) set as character p and a preset number. p1 is the fastest one with the worst compression ratio and p9 is the slowest but with the best possible ratio; e.g. -c zip:3:p9 for Deflate encoding with maximum compression level and floating point predictor.

For the Deflate codec, and in a libtiff build with libdeflate enabled, p12 is actually the maximum level.

For the Deflate codec, and in a libtiff build with libdeflate enabled, s0 can be used to require zlib to be used, and s1 for libdeflate (defaults to libdeflate when it is available).

-f fillorder

Specify the bit fill order to use in writing output data. By default, tiffcp will create a new file with the same fill order as the original. Specifying -f lsb2msb will force data to be written with the FillOrder tag set to LSB2MSB, while -f msb2lsb will force data to be written with the FillOrder tag set to MSB2LSB.

-i

Ignore non-fatal read errors and continue processing of the input file.

-l

Specify the length of a tile (in pixels).

tiffcp attempts to set the tile dimensions so that no more than 8 kilobytes of data appear in a tile.

-L

Force output to be written with Little-Endian byte order. This option only has an effect when the output file is created or overwritten and not when it is appended to.

-M

Suppress the use of memory-mapped files when reading images.

-o offset

Set initial directory offset.

-p

Specify the planar configuration to use in writing image data that has one 8-bit sample per pixel. By default, tiffcp will create a new file with the same planar configuration as the original. Specifying -p contig will force data to be written with multi-sample data packed together, while -p separate will force samples to be written in separate planes.

-r

Specify the number of rows (scanlines) in each strip of data written to the output file. By default (or when value 0 is specified), tiffcp attempts to set the rows/strip that no more than 8 kilobytes of data appear in a strip. If you specify special value -1 it will results in infinite number of the rows per strip. The entire image will be the one strip in that case.

-s

Force the output file to be written with data organized in strips (rather than tiles).

-t

Force the output file to be written with data organized in tiles (rather than strips). options can be used to force the resultant image to be written as strips or tiles of data, respectively.

-w

Specify the width of a tile (in pixels). :program::tiffcp attempts to set the tile dimensions so that no more than 8 kilobytes of data appear in a tile.

-x

Force the output file to be written with PAGENUMBER value in sequence.

-8

Write BigTIFF instead of classic TIFF format.

-,= character

substitute character for , in parsing image directory indices in files. This is necessary if filenames contain commas. Note that -,= with whitespace immediately following will disable the special meaning of the , entirely. See examples.

-m size

Set maximum memory allocation size (in MiB). The default is 256MiB. Set to 0 to disable the limit.

Examples

The following concatenates two files and writes the result using LZW encoding:

tiffcp -c lzw a.tif b.tif result.tif

To convert a G3 1d-encoded TIFF to a single strip of G4-encoded data the following might be used:

tiffcp -c g4 -r 10000 g3.tif g4.tif

(1000 is just a number that is larger than the number of rows in the source file.)

To extract a selected set of images from a multi-image TIFF file, the file name may be immediately followed by a , separated list of image directory indices. The first image is always in directory 0. Thus, to copy the 1st and 3rd images of image file album.tif to result.tif:

tiffcp album.tif,0,2 result.tif

A trailing comma denotes remaining images in sequence. The following command will copy all image with except the first one:

tiffcp album.tif,1, result.tif

Given file CCD.tif whose first image is a noise bias followed by images which include that bias, subtract the noise from all those images following it (while decompressing) with the command:

tiffcp -c none -b CCD.tif CCD.tif,1, result.tif

If the file above were named CCD,X.tif, the -,= option would be required to correctly parse this filename with image numbers, as follows:

tiffcp -c none -,=% -b CCD,X.tif CCD,X%1%.tif result.tif

✅ tiffdump

Synopsis

tiffdump [ options ] name …

Description

tiffdump displays directory information from files created according to the Tag Image File Format, Revision 6.0. The header of each TIFF file (magic number, version, and first directory offset) is displayed, followed by the tag contents of each directory in the file. For each tag, the name, data type, count, and value(s) is displayed. When the symbolic name for a tag or data type is known, the symbolic name is displayed followed by it's numeric (decimal) value. Tag values are displayed enclosed in <> characters immediately preceded by the value of the count field. For example, an ImageWidth tag might be displayed as ImageWidth (256) SHORT (3) 1<800>.

tiffdump is particularly useful for investigating the contents of TIFF files that libtiff does not understand.

Options

-h

Force numeric data to be printed in hexadecimal rather than the default decimal.

-m items

Change the number of indirect data items that are printed. By default, this will be 24.

-o offset

Dump the contents of the IFD at the a particular file offset. The file offset may be specified using the usual C-style syntax; i.e. a leading 0x for hexadecimal and a leading 0 for octal.

✅ tiffinfo

Synopsis

tiffinfo [ options ] input.tif …

Description

tiffinfo displays information about files created according to the Tag Image File Format, Revision 6.0. By default, the contents of each TIFF directory in each file are displayed, with the value of each tag shown symbolically (where sensible).

Options

-c

Display the colormap and color/gray response curves, if present.

-D

In addition to displaying the directory tags, read and decompress all the data in each image (but not display it).

-d

In addition to displaying the directory tags, print each byte of decompressed data in hexadecimal.

-j

Display any JPEG-related tags that are present.

-o

Set the initial TIFF directory according to the specified file offset. The file offset may be specified using the usual C-style syntax; i.e. a leading 0x for hexadecimal and a leading 0 for octal.

-s

Display the offsets and byte counts for each data strip in a directory.

-z

Enable strip chopping when reading image data.

-#

Set the initial TIFF directory to #.

-W

Warn about unknown tags.

✅ tiffsplit

Synopsis

tiffsplit src.tif [ prefix ]

Description

tiffsplit takes a multi-directory (page) TIFF file and creates one or more single-directory (page) TIFF files from it. The output files are given names created by concatenating a prefix, a lexically ordered suffix in the range [aaa--zzz], the suffix .tif (e.g. xaaa.tif, xaab.tif, …, xzzz.tif). If a prefix is not specified on the command line, the default prefix of x is used.

Options

None.

Exit status

tiffsplit exits with one of the following values:

0:

Success

1:

An error occurred either reading the input or writing results.

Bugs

Only a select set of "known tags" are copied when splitting.