Convert PDF file to image files, and convert image files back to PDF file again, but the new PDF file size is become too large. pdf2img command line and img2pdf command line

Dear Verypdf support Team,

We have tried to create ticket on Portal but we unable to create it as system seems to be down.

We have purchased PDF2img command line license and we are using it on our website.

We found that Verypdf behaves abnormally sometime , where it not creates the TIFF files from PDF. But sometime it works well.

As per our functionality , when ever any user upload some PDF file we use execute PDF2img at the background via code to convert the PDF page to Tiff.

Please refer below screencast, we are trying to convert 3 page PDF to Tiff and only 1 page created.

Additionally, we have found that compression technique provided in CMD commands are not as per the expectation.

When we apply "-r 300" DPI = 300 and Tiff file generated with very very high size on disk.

We want to achieve two points,
1. Quality of Image should not be distorted.
2. As we are converting Image back to PDF, as we also have purchased Img2PDF license also from you.

Please Advice.

We want to keep Tiff size on disk is small, as we found that while converting PDF to Tiff, and again from those tiff to PDF, size of actual PDF increases by 10X time.

Please refer attached ZIP file where we have used your compression values given in readme.txt.

We have observed that Tiff file generated in different way in different compression technique.

We want to compress Tiff in such a way that, we can convert back those tiff with PDF again without distorting the quality of PDF and we don't want to drastically increase the size of PDF.

Please advice which is best for us from below?

Please Advice.

-compress : 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 : 204x98 G4 ClassF TIFF
-compress 88881 : 204x196 G4 ClassF TIFF
-compress 88882 : 204x98 G3 ClassF TIFF
-compress 88883 : 204x196 G3 ClassF TIFF
-compress 88884 : CCITT Group 3 fax encoding (2d)

Please advice if any other tools can help us to solve those issues. Note we are doing processing on WebServer.

May we request you to please review and provide your feedback soon.

Thanks and regards,
Customer
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PDF to Image Converter Command Line,
http://www.verypdf.com/app/pdf-to-image-converter/try-and-buy.html#buy-cmd
http://www.verypdf.com/dl2.php/pdf2image_win.zip

Image to PDF Converter Command Line,
http://www.verypdf.com/app/image-to-pdf-ocr-converter/try-and-buy.html#buy-cvt-cmd
http://www.verypdf.com/tif2pdf/image2pdf_cmd.zip

Image to PDF OCR Converter Command Line,
http://www.verypdf.com/app/image-to-pdf-ocr-converter/try-and-buy.html#buy-ocr-cmd
http://www.verypdf.com/tif2pdf/image2pdf_cmd_ocr_trial.zip

Thanks for your message, we suggest you may run following command line to convert your PDF file to TIFF file,

pdf2img.exe -xres 300 -yres 300 -mono -compress 4 D:\downloads\in.pdf D:\out.tif

the file size of generated TIFF file is 50KB, it is a black and white TIFF file, we hope this file size will okay to you.

VeryPDF
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Dear VeryPDF Support Team,

Thanks for your feedback.

You have not replied to out comments related to

Please refer below screencast , we are trying to convert 3 page PDF to Tiff and only 1 page created.

1) Why VeryPDF behaves abnormally sometimes??
Note : we are using VeryPDF on WebServer
where if End User , Upload one PDF with 3 pages , we keep PDF at one location
then we are passing this PDF to verypdf PDF2Img command line to provide us the Thumbnails in Tiff format.

Below is the command

-r 300 -o "\Upload\\\\.pdf" "\ScanImages\\\\.tiff"

2) Additionally , we would like to know about,
If suppose one PDF which contains 3 pages,
Page 1 - Image only (color image)
Page 2 - Image with text
Page 3 - text only

1) If we have color image we want to convert that PDF page to TIFF in "Gray" (page 1)
2) Image with text = gray (Page 2)
3) text only Mono (Page 3)

How we can achieve this by maintaining Image Quality and Final PDF generated again from above TIFF file should have less space on disk?

Note : We also purchased , Img2PDF console application , which can convert TIff file to PDF again.
Problem statement is,
when we are creating High resolution TIFF by method1 , and again converting back TIFF to PDf we get PDF with very size on disk.

Please provide your feedback on the same at the earliest.

We look forward to hear from you.

Thanks and regards,
Customer
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>>Note : we are using VeryPDF on WebServer
>>where if End User , Upload one PDF with 3 pages , we keep PDF at one location
>>then we are passing this PDF to verypdf PDF2Img command line to provide us the Thumbnails in Tiff format.
>>Below is the command
>>-r 300 -o "\Upload\\\\.pdf" "\ScanImages\\\\.tiff"

Please run following command line in CMD window by manual to try again,

pdf2img.exe -r 300 "D:\input.pdf" "D:\out.tif"

In general, you will get 3 TIFF files in D:\ folder.

How many TIFF files were created in your system by above command line?

>>2)
>>Additionally , we would like to know about,
>>If suppose one PDF which contains 3 pages ,
>>Page 1 - Image only (color image)
>>Page 2 - Image with text
>>Page 3 - text only
>>1) If we have color image we want to convert that PDF page to TIFF in "Gray" (page 1)
>>2) Image with text = gray (Page 2)
>>3) text only Mono (Page 3)
>>How we can achieve this by maintaining Image Quality and Final PDF generated again from
>>above TIFF file should have less space on disk.

This function requires an Image Analysis Technology, our "PDF to Image Command Line" hasn't this function yet, however, if this function is important to you, we can provide a custom-build version of "PDF to Image Command Line" product to you at additional cost, we will implement this function in this custom-build version within a few business days, please feel free to let us know if you are interest in this solution.

>>Note: We also purchased "Image to PDF Converter console application" which can convert TIFF file to PDF again.
>>Problem statement is ,
>>when we are creating High resolution TIFF by method1, and again converting back TIFF to PDF we get PDF with very size on disk.

Yes, I understand your meaning, you can use method2 to reduce the file size to "text only image files", this will save the disk space a lot.

VeryPDF

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VeryPDF PDF Converter Master for Windows and Mac Systems

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http://www.verypdf.com/app/pdf-to-any-converter/
http://www.verypdf.com/app/pdf-to-any-converter-mac/index.html

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Have you notice that presenter loves converting the presentation into PDFs for distribution? With VeryPDF PDF Converter Master, you can recover the PowerPoint (.pptx) from PDF without efforts. PDF to PowerPoint Conversion will preserve the original layouts, content and graphics well. Reusing the presentation can not be easier.

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Mobile Scanning Solutions. Scan to PDF on smartphones and tablets. Compress PDF files for fast web view and email.

VeryPDF does provide a a series of Mobile Scanning Solutions, such as,

  • Scan to PDF on smartphones and tablets
  • High-quality scanned documents
  • Highly compressed PDF files using JBIG2 and JPEG2000 (JPX) technologies
  • Rapid-scan app development tools
  • Make searchable PDF file on iOS (iPhone and iPad) and Android mobile systems

The professional solution for scanning and converting documents on smartphones and tablets.

image

With our mobile scanning solution you can scan any desired document with your mobile phone. With our mobile scanning solution, we turn your mobile phone into an office tool that you can use to scan documents.

The current technology allows us to use smartphone cameras instead of fast document scanners. With our mobile scanning application, we can provide you services through your own applications or through a multi-scanning (up to 20 pages per minute) application customized for you.

Maximum document quality, less manual processing, streamlined document management within your business. Increase the range of services offered to your customers to include digital document submission. And all of this with a minimum of development work: Mobile Scanning Solutions!

Mobile scanning, processing and compression: three different options

Light bulb PDF Paper Scanner

PDF Paper Scanner is the complete app that turns your smartphone into a mobile scanner for use on the move. Top-quality images, compressed into high-quality PDF files and optionally fully text-searchable. The ideal solution for mailrooms, cloud solutions and emailing.

  • Automatic focusing and release
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  • Post-processing for PDF and JPEG files

Scan & Print - Document Scanner and Printer,
https://itunes.apple.com/us/app/scan-print-document-scanner-and-printer/id1101970476?mt=8

Paper Scanner - Scan, Print and Share Papers,
https://itunes.apple.com/us/app/paper-scanner-scan-print-and-share-papers/id1073012702?mt=8

Light bulb Mobile Compression SDK

The Mobile Compression SDK Toolkit for app developers that lets you integrate the benefits of mobile compression into your own business applications. This SDK will allow your app own Document Scanner and PDF compression functions, this SDK has following features,

  • Award-winning PDF compression, including JBIG2, JPEG2000 and more
  • Interfaces for integration with OCR output
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Comprehensive package of toolkits for use individually or together. Just the solution for app developers looking to embed scanning functionality into their apps without worrying about features such as image processing, camera management and scanning quality. The app framework SDK guarantees the minimum possible development times.

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School See Also:

VeryPDF PDF Scanner SDK for iOS. The best Scanner Framework for your iOS (iPhone and iPad) app,
http://www.verypdf.com/wordpress/201702/verypdf-pdf-scanner-sdk-for-ios-the-best-scanner-framework-for-your-ios-iphone-and-ipad-app-43313.html

Paper Scanner - Scan, Print and Share Papers,
https://itunes.apple.com/us/app/paper-scanner-scan-print-and-share-papers/id1073012702?mt=8

Scan & Print - Document Scanner and Printer,
https://itunes.apple.com/us/app/scan-print-document-scanner-and-printer/id1101970476?mt=8

VeryPDF Scan to PDF,
https://itunes.apple.com/us/app/verypdf-scan-to-pdf/id946795179?mt=8

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Enterprise Automation PDF Solutions, Enterprise-Scale PDF Solutions, PDF Server Software

Achieve consistency and quality by converting to standardized PDF and PDF/A using VeryDOC PDF to PDF/A Converter Command Line. File Conversion into PDF or PDF/A for standardization and long-term archiving,

http://www.verydoc.com/pdf-to-pdfa.html

image

Save file space and ease file sharing with industry-leading image compression (JBIG2 and JPEG2000/JPX compression). Compress images and fonts in PDF files using VeryDOC PDF Compressor Command Line,

http://www.verydoc.com/pdfcompressor.html

Modify PDF Content by automating the addition of watermarks, headers, footers, pages, etc. OCR scanned documents for search-ability. Overlay and watermark insertion that enables you to add identifiers like logos, "confidential" and more,

http://www.verypdf.com/app/pdf-stamp/index.html

Scanned image file compression and OCR enabling you to make content searchable,

http://www.verypdf.com/app/ocr-to-any-converter-cmd/try-and-buy.html

Safeguard Sensitive Data. Protect confidential information by securing PDFs with passwords and permissions, redaction of sensitive information, or Microsoft Rights Management integration.

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http://www.verypdf.com/app/pdf-security-and-signature/index.html

PDF Rendition Server. You can integrate PDF platform (VeryPDF Cloud API Platform) into your data center infrastructure. VeryPDF Cloud API Platform is an easy-to-use web service that can be integrated into your workflow applications,

http://www.verypdf.com/online/cloud-api/index.html

Redaction of sensitive information for compliance and data protection,

http://www.verypdf.com/app/pdf-editor/index.html

PDF Compressor. Large-scale OCR, compression, and PDF conversion of a wide range of file formats. Converts scanned and digital documents into PDF and PDF/A for a single unifying file format. Integrated OCR technology allows full text searching for all scanned documents converted to PDF and PDF/A files. Extracted OCR data can be handed over to existing systems for further processing to assist with any number of business processes.

http://www.verypdf.com/app/ocr-to-any-converter-cmd/index.html
http://www.verypdf.com/app/pdf-to-text-ocr-converter/index.html
http://www.verypdf.com/app/image-to-pdf-ocr-converter/try-and-buy.html#buy-ocr-cmd

Use PDF Toolkit to automate high-volume PDF workflows or to integrate into your own applications. PDF Toolkit provides CLI and API interfaces. You can use it to protect PDF documents, to set document metadata information and compress file size, and to manipulate PDF files, add watermarks, organize pages, and insert headers and footers.

http://www.verypdf.com/app/pdftoolbox/index.html
http://www.verypdf.com/app/pdftoolbox/component.html

PDF WebForms. Online form distribution and data collection by converting fillable PDF forms into interactive web pages. Uploading your fillable PDF form will automatically convert it and make it available on the web. VeryPDF Web Forms are compatible with all browsers. Since the look and feel of the form is familiar, they will be able to fill it out quickly and easily. All form data is kept in a centralized location for you to quickly reference.

http://www.verypdf.com/app/html5-pdf-form-filler/index.html
http://online.verypdf.com/app/pdf-form-filler/
http://www.verypdf.com/app/pdf-form-filler/index.html

Mobile Scanning Solutions. The professional solution for scanning and converting documents on smartphones and tablets. PDF Scanner is the complete app that turns your smartphone into a mobile scanner for use on the move. Top-quality images, compressed into high-quality PDF files and optionally fully text-searchable. The toolkit for app developers that lets you integrate the benefits of mobile compression into your own business applications. The App Framework SDK provides a comprehensive package of tools to embed scanning functionality into apps without worrying about features such as image processing, camera management, and scanning quality.

Paper Scanner - Scan, Print and Share Papers,
https://itunes.apple.com/us/app/paper-scanner-scan-print-and-share-papers/id1073012702?mt=8

Scan & Print - Document Scanner and Printer,
https://itunes.apple.com/us/app/scan-print-document-scanner-and-printer/id1101970476?mt=8

VeryPDF PDF Across the Enterprise
These Enterprise Automation products integrate seamlessly with our End User Productivity and Developer Solutions products, giving you a complete PDF solution across your enterprise.

If you have any question for these products, please feel free to let us know, we are glad to hear from you,

http://support.verypdf.com/open.php

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PDF to Word: Convert PDF files to Word files on iOS (iPhone and iPad)

If you deal regularly with PDF files, and often use word processors such as Microsoft Word to edit your text documents, then an app called "VeryPDF PDF to Word Converter for iOS (iPhone and iPad)" from the App Store could easily become your new best friend.

"VeryPDF PDF to Word Converter for iOS (iPhone and iPad)" is the best PDF conversion app that allows you to convert PDF to Word and create PDF files from Office.

image

https://itunes.apple.com/us/app/verypdf-pdf-to-word/id959436075?mt=8

This app lets you easily convert PDF files to Word files (DOC, DOCX, RTF, TXT, etc.), so that you can edit them in Microsoft Word for iOS or on Microsoft Word on your computer. In this tutorial, we'll go through the process of using the app and show you just how easy this process can be.

image

How to convert PDF files to Word files on iPhone?

PDF to Word is a great way to convert your PDF files to Microsoft Word files with ease; the process simply involves having a PDF file on hand, such as inside of your Dropbox account as we'll demonstrate in this tutorial, and opening the file in the PDF to Word app on your iOS device to start the conversion process.

You can follow these steps to begin converting your PDF files to Microsoft Word files:

1. Download and install "VeryPDF PDF to Word Converter for iOS (iPhone and iPad)" from App Store,

image

https://itunes.apple.com/us/app/verypdf-pdf-to-word/id959436075?mt=8

2. Add a PDF file into PDF to Word App, select it, and click "PDF to Word" button, you will able to convert from this PDF file to Word document easily,

image

image

image

3. After you get the Word file (DOC, DOCX, RTF, TEXT, etc. format), you can open the converted document in MS Office or OpenOffice to reuse the contents easily.

When you want to convert only PDF to Word, you can use this app. But it does not have any other PDF editing features. When you want to edit and convert PDF on computer, you can go with VeryPDF PDF Editor for Windows which can be downloaded from this web page,

http://www.verypdf.com/app/pdf-editor/try-and-buy.html#buy

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