Convert scan PDF to PDF/A by command line

  VeryPDF PDF to PDF/A Converter has been updated recently and now it can be used to convert all kinds of PDF file to PDF/A by command line. Especially when you need to convert scan PDF file to PDF/A, this software will help you a lot. It can help you convert scan PDF to PDF/A in batch or systematically. In the following part, I will show you how to use this function.

Step 1. Download PDF to PDF/A Converter

  • This software is Window command line application, once downloading finishes, there will be a zip file in the downloading folder. Please extract the zip file to some folder then you can check the elements in it.
  • Please make sure download the latest version or else this function can not be fulfilled as it is not supported by the older version.

Step 2. Converter scan PDF to PDF/A

  • Please use this software according to the usage and example.

Usage: pdftools [options] <pdf-file> [<out-pdf>]
Examples.
When converting scan PDF to PDF/A, please refer to the following command line template.
pdf2pdfa.exe -mode 2 C:\in.pdf C:\out.pdf
pdf2pdfa.exe -mode 1 C:\in.pdf C:\out.pdf
pdf2pdfa.exe -mode 2 C:\*.pdf C:\*.pdf
By above command line, you can either convert scan PDF to PDF/A singly or in batch. Please see parameter explanation below.-mode <int>         : convert PDF to PDF/A by various modes, e.g, 0, 1, 2
This software supports batch converting using wild character * or bat file.
Note:if “-mode 0″ fails you , please try to add parameter “-mode 2″ method to try again.
-mode 0: default mode. When you do the conversion, this parameter can be omitted as it is default setting.
-mode 1: when you need to do quick conversion, please use value 1. This mode can be used to repair the existing PDF/A files, then you can do conversion easily without any mistake. This parameter can also convert scanned PDF files to PDF/A files quickly, but this mode can’t embed the font data into PDF file, so it can’t convert a PDF file which contain system fonts to PDF/A files properly.
-mode 2: this is full conversion mode, this mode does analyze everything is PDF file, and process everything in PDF file to comply with PDF/A format carefully.

Now let us check the conversion effect from the following snapshot. During the using, if you have any question, please contact us as soon as possible.

input PDF and output PDFA 

If you need to own one for forever use, please pay for it here then you can use it without any limitations.

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Convert PDF to image and disable dithering

   Image dithering is a kind technology which will be used when processing digital image quality. Generally speaking, it is for showing the best technology show to a digital image in the case of reducing the color depth say when using 8-bit color depth to show 24bit color depth image. If you need to convert PDF to image and then print image file, this software will give you great help.

Image dithering is commonly used by programs that need to provide continuous image of higher colors on a display of less color depth. VeryPDF PDF to Image Converter takes this technology when do the conversion from PDF to image. In the following part, I will show you how this software works.

Please check dithering effect from the following snapshot.

dithering

Step 1. Download PDF to Image Converter

  • Here I use Window command line version for example. However, if you need Linux, Mac or GUI version, there are also such versions available for you.
  • When downloading finishes, please extract the zip file to some folder then you can check the elements in it.

Step 2. Convert PDF to image and enable dithering

  • Please use this software according to the usage and example.
    Usage: pdf2img.exe [options] <PDF-file> <Output-file>
  • When you need to convert PDF to image and enable dithering, please refer to the following command line template.
    pdf2img.exe -dither 1 -mono C:\in.pdf C:\out.tif
    pdf2img.exe -dither 0 -mono C:\in.pdf C:\out.tif
    By this command line, you can convert PDF to mono tiff file and enable image dithering. However, sometime you may need to disable dithering, this software also can help you do that. When comes to dithering, VeryPDF software has such parameters developed for you:
  • -dither <int>: when enable or disable image dithering, please add this parameter. And this parameter is good when reduce the number of bits per pixel to bit (1, 4 or 8)
       -dither 0: Disable dithering
       -dither 1: Floyd & Steinberg error diffusion
       -dither 2: BAYER4x4, Bayer dot dithering (order 2 dithering matrix)
       -dither 3: BAYER8x8, Bayer dot dithering (order 3 dithering matrix)
       -dither 4: CLUSTER6x6, Clustered dot dithering (order 3 – 6×6 matrix)
       -dither 5: CLUSTER8x8, Clustered dot dithering (order 4 – 8×8 matrix)
       -dither 6: CLUSTER16x16, Clustered dot dithering (order 8 – 16×16 matrix)
       -dither 7: BAYER16x16, Bayer dot dithering (order 4 dithering matrix)

By those image dithering methods, I guess you can make the conversion from PDF to image perfectly. Now let us check the conversion effect from the following snapshot. During the using, if you encounter any problem, please contact us as soon as possible.

inut PDF and output tif

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PDF to Raster Command Line Converter

   VeryPDF PDF to Raster Command Line Converter can be used to convert PDF file to all kinds of raster image file formats like TIFF, JPEG, GIF, PNG, BMP, EMF, PCX, TGA. etc in batch. During the conversion, this software allows you to set options that you need when output as raster files like, set image resolution, set conversion page range and so on. Especially when output file format is tiff, by this software you can set compression methods. In the following part, I will take convert PDF to raster tiff for example to show you how to use this software.

Step 1. Download PDF to Raster Converter

  • This software is command line version software, so when downloading finishes, there will be a zip file. Please extract it to some folder then you can find the executable file and run it in the MS Dos Windows.
  • Please make sure download the right version, as there are three version stated on website:Mac, Linux and Windows. In this article, I will take take the Windows version for example.

Step 2. Convert PDF to Raster

  • The syntax of this command line software is quite simply, but you still need to run the conversion according to the usage. Usage: pdf2img.exe [options] <PDF-file> <Output-file>
  • When you just need to convert single PDF to raster file, please refer to the following command line template.
  • pdf2img.exe C:\in.pdf C:\out.tif
    pdf2img.exe C:\in.pdf C:\out.gif
    pdf2img.exe C:\in.pdf C:\out.jpg
    pdf2img.exe C:\in.pdf C:\out.bmp
    pdf2img.exe C:\in.pdf C:\out.png
    All the syntax are same, just change the output file format will be OK.

  • When you need to do the conversion in batch, please refer to the following command line template.
  • for %F in (D:\temp\*.pdf) do pdf2img.exe “%F” “%~dpnF.png”
    for /r D:\temp %F in (*.pdf) do pdf2img.exe “%F” “%~dpnF.png”
    for %F in (D:\temp\*.pdf) do pdf2img.exe “%F” “D:\temp\out\%~nF.xls”
    for %F in (D:\temp\*.pdf) do pdf2img.exe “%F” “%~F.png”
    By the above command line template, you can run the conversion in batch automatically. And when you write them in the bat file, simply click it then you can run the conversion. Even those who does not have knowledge in command line can help you finish the conversion task.

  • When output file format is tiff, you can compress it by the following compression methods.
  • -compress <int>     : set compression to TIFF format:
       -compress 1     : NONE compression
       -compress 2     : CCITT modified Huffman RLE
       -compress 3     : CCITT Group 3 fax encoding (1d)
       -compress 4     : CCITT Group 4 fax encoding
       -compress 5     : LZW compression
       -compress 6     : OJPEG compression
       -compress 7     : JPEG DCT compression
       -compress 8     : ADOBE_DEFLATE compression
       -compress 32773 : PACKBITS compression
       -compress 32809 : THUNDERSCAN compression
       -compress 32946 : DEFLATE compression
       -compress 88880 : 204×98  G4 ClassF TIFF
       -compress 88881 : 204×196 G4 ClassF TIFF
       -compress 88882 : 204×98  G3 ClassF TIFF
       -compress 88883 : 204×196 G3 ClassF TIFF
       -compress 88884 : CCITT Group 3 fax encoding (2d)

Now let us check the conversion and compression effect from the following snapshot. During the using, if you have any question, please contact us as soon as possible.

input PDF and output tif

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Convert PDF to image and specify resolution by command line

   When you need to convert PDF to image and specify image resolution by command line, maybe you can have a free trial of software VeryPDF PDF to Image Converter Command Line software, which can work under three platforms:Mac, Linux and Windows. In the following part, I will show you how to convert PDF to image and specify resolution from 150-1200 dpi.

Step 1. Download PDF to Image Converter Command Line

  • Here I will take the Window version for example, if your computer is other system, please download the right version.
  • For uploading and downloading easily, we have compressed it to zip file. Once downloading finishes, there will be an zip file. Please extract it to some folder then you can find the executable file.
  • And before run the conversion, please read usage introduction and website carefully then you can use this software smoothly.

Step 2.  Convert PDF to image and specify resolution.

 Usage:pdf2img.exe [options] <PDF-file> <Output-file>
When you need to convert PDF to image by command line and specify resolution, please refer to the following command line template.
pdf2img.exe -f 1 -l 10 -r 300 -mono C:\in.pdf C:\out.tif
Parameters:
-f <int>            : this parameter can help you specify the first page to convert.
  -l <int>          : this parameter can help you specify the last page to convert.
-r <int>            : please specify image resolution after this parameter, and the unit is in DPI (default is 150dpi)
-mono               : when you need to generate a monochrome image file, please add this parameter in the command line.
By the above command line, you can convert page 1 to 10 in PDF file to mono tiff file and specify the image resolution as 300. Now let us check the conversion effect from the following snapshot.

output tiff file

  • When you need to convert PDF to other image file format with much more higher resolution, this software also can make that for you. Now let’s say converting PDF to png and specify resolution with 1000. Then you should use the following command line template.
    pdf2img.exe -r 400:\in.pdf C:\out.png
    If you do not add parameter –mono, it will output colorful image file, please check the conversion effect from the following snapshot.

output png with 400 resolution

So by this software, you can convert PDF to various image file formats by command line. And you can adjust resolution according to your needs. Please note when you set high resolution like 1200 and your computer memory is a little bit small, the conversion will be very time-consuming. During the using, if you have any question, please contact us as soon as possible.

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How to replace text in PDF by PDF Text Replacer correctly?

Question:I am a licensed customer of Batch PDF Text Replacer and I can not make it work. Attached is the file that I have attempted to edit. I tried to change Q2 to Q3. The software creates a new file, however, without any changes to the PDF.

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Answer: I have tested your PDF file and tried to replace text Q2 to Q3. I have made it successfully in a few seconds. So I guess there are maybe some wrong operations. In order to help more who may be perplexed by this problem, I write an article here. Please replace text according to the introduction.

Step 1. Install PDF Text Replacer

  • PDF Text Replacer was developed by VeryPDF software company for replacing text of PDF in batch. And it is a windows application which can work both under 32-bit and 64-bit. Once downloading finishes, please install this software by double clicking the exe file and following installation message.
  • When installation finishes, there will be an icon on the desktop. Please launch this software by double clicking this icon.

Step 2. Replace text from Q2 to Q3

  • The following snapshot is from the software interface. Please click button Add to add PDF file to software interface or you can drag files from its containing folder to software interface. Then it will be shown in the File List.

software interface of PDF to text replacer

  • Please click folder icon to specify the output folder. And then click button Setting to specify the replaced text. Once you add file to software interface then it will be shown in left preview Window when you click button Setting option. Then there will be green text box around the text you need to replace. Please right click the text you want to replace and click button Add it to the table. When you click that option, the text will be shown in the right table. Please input the text that you need, say you need to use Q3 instead if Q2.
  • Please note here in this step, please input the same font showed in Find what part. Here you need to input 12-13/Q3 in Replace With part. And if you need to replace the whole text in all pages of PDF file, please choose All pages in Page option.

setting menu option

  • Then click button Save to back to main interface. And click button Replace to run the conversion. And the process will be shown in the bottom part of the software. When Process Status tells you Finish, then you can check the replaced files in the specified output folder.

Now let us check the replacing effect from the following snapshot. During the using, if you have any question, please contact us as soon as possible.

input and output

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