$imagick_type_good -> readImageFile ( $file_handle_for_viewing_image ) įclose ( $file_handle_for_viewing_image ) $file_handle_for_viewing_image = fopen ( $image_file_location, 'a+' ) The resultant filesizes should be enough to convince you that all bad files are merely duplicate jpgs. Output Filenames: test_result_bad.bmp, test_result_bad.png, test_result_good.bmp, test_result_good.png. Some sample code to demonstrate (using PHP Version 5.2.17). When the only line of code I changed was ReadImage to ReadImageFile, the problem disappears entirely. The functions setImageFormat and setFormat, programmed line after line, provided no effect to changing the format to png, bmp, or gif. Initially, the first looks far more tempting, since you don't have to worry about fopen and fclose commands.īut, there is a problem with the ReadImage function! With an imagemagick object whose data was created from this function, I could scale, change the colors, and perform artistic effects upon the object, without any problems at all, but then there was a problem with saving: it seemed to be keep me stuck to the image format of the original image (in this case, a ".jpg", but it may be different elsewhere). What is the difference between ReadImage and ReadImageFile? Based by looking at the pages, you would think that they behave the exact same, except in their arguments: ReadImage takes a string containing the folder location of the file, and ReadImageFile takes a handle pointing to the file location. It converts many JPG images to a unique PDF file.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search All you need is to put them all in a single document. As a multi-pages format, it can embed as many JPG as you want. Some recipients have to open them one by one, which is quite annoying. On many devices and email apps, the image display is not convenient. Yet, if you have many images to send, this can be annoying. Since photos are JPG files, it is easy to send them as email attachments. After all, everybody has an email address. There are many ways to do this.Ī solution is to send them by email. From time to time, you share some of them. Like everyone else, you must have a lot of photos. Instead of many JPG, a PDF easier to handle You can simply upload all your JPG at once and convert them to a PDF. Then, you can send it to the printer with the certainty of its final appearance.Ĭ is perfect for this task. After all, the "P" in "PDF" stands for "Printable"! So you might find easier and more cost effective to first convert your JPGs to PDF. The PDF format is more predictable to this respect. Many times, images do not fit the physical medium well. However, the result is often disappointing. Getting a photo on a sheet is a matter of clicking a button. After all, years ago, it was almost their sole form of existence. However, there is a use case where JPG often fails: printing. For example, a pictures gallery app naturally supports it. Plus, JPG is the expected file type for most image-oriented services and software. Stories behind JPG to PDF conversion JPG are less suited than PDF for printing
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