[Bulk Convert SVG To AI With This Open Source Converter
Christel Malden
I tried (proprietary) FonePaw HEIC Converter but metadata are missing in circa 50% of cases (even when I can see them in original HEIC files using Windows Photos Viewer). I use Windows 10 or Linux (recent Ubuntu).
I had two errors with GIMP but the .HEIC files are converted to .JPG. Not sure if all metadata are preserved. Some will change for sure (info depending of file format). If it doesn't work for all metadata you can try exiftool (command line) to overwrite metadata in bulk to the .JPG files (converted by GIMP or another software) from the .HEIC files. You can also try ImageMagick from command line to convert.
Note : I'm not a specialist in image format, but I think even at 1,00 Quality for .JPG, you will lose resolution from .HEIC. Maybe .PNG is a better choice, depending of what you want. Files will be larger in .PNG. Make tests with some files.
iMazing HEIC Converter is a free utility (available for both Windows and Mac) that can batch-convert HEIC photos to JPEG or PNG format. Just install and run the program, then open an Explorer window containing your HEIC files.
I have well over 1000 .doc files that I need to convert to .docx files for viewing and editing from IPads. The .doc files cannot be edited and need to be converted .docx files to allow editing via IPad pen through OneDrive etc ..
That app doesn't seem to work properly. It converts the files, however when I go to open 1 of those in Word, it says that there's lost text in the document or a similar error message & I only end up displaying a blank document. I'm using Microsoft Word for Microsoft 365 MSO (Version 2302 Build 16.0.16130.20186) 64-bit & my files are just fine, so I know it's not related to Word or my files but rather that converter app you pointed out. Also that has an annoying dialog box that tells about their other solutions that pops up every single time I exit the program. Doesn't seem to be a way to turn that off, so another reason to avoid using it. (like shareware to me in that sense) I think maybe there's a better solution out there, although it may not be free. I don't have as many .doc formatted files, but there's more than I can handle by manually converting them 1 by 1. Will look into this & post a reply if I find a better solution...
I hope this comprehensive overview helps you choose the best method for batch converting your JPEGs to PNGs. If you have any further questions or need more specific instructions based on your chosen method, feel free to ask!
But can I be honest? I'd do that with a more efficient and far faster conversion utility like IrfanView. Photoshop is incredibly slow for this type of work. For example, I did a quick test to demonstrate the difference in performance:
Another issue is that during the conversion process Photoshop cannot be used - while with a simple conversion utility you can leave it running in the background, and continue to use PS for other work if required. This matters if you have hundreds of images to convert.
I did Google Irfanview for Mac before uploading post #3, and saw a few links that suggested it was doable. After a closer look, it appears there is native version and you have to jump through a hoop or two.
Then, however, I noticed the reason for this: no compression is applied at all by PS, and the resulting PNG files are huge, this being the nature of uncompressed PNGs. Next, I checked the "save for web" option - which resulted in the long wait times again, because it seems PS automatically sets the compression rate to one of the highest (8 or 9). This takes about 33 seconds compression time per image with my benchmark images. That is too long. It also explains why IrfanView is so much faster and still produces nicely compressed versions.
You can do this batch conversion through the native Preview app on Macs. Open the selected images in Preview or drag and drop them onto the Preview icon, highlight all the images, export selected images, and from there you can save as PNG or, alternatively, you can downsize the JPEGs if you want.
Create a Photoshop Droplet, which is a mini-app that you can drag and drop your JPG files onto to do the auto-convert to PNG. To create the Droplet app, you need to create an Action in the Actions Panel first. So open one JPG file and record an action of saving that file as a PNG. In the Action Panel, create a new Action. It will ask you to name it, try something like "PNG Convert". When you hit ok, it will begin recording. Now just save that file (Save As) a PNG. It should be set to save it in the location it was originally.
Select where you want the Droplet App saved - probably the destination folder of the files you want to convert, and name it. In the Play box, set your Set and Action. Your Set is probably the Default Set unless you created a new Action folder and the Action should be the action that you created - it may default to the one you created already. One other thing to set is the Destination to at least: Save and Close, because it is going to open each file, do its action and if you don't set close, you may end up with hundreds of open files, which will slow things down. You can see here that there are a bunch of other settings if you want to get into the weeds, but these settings will get you running.
Note, if a file is misnamed ".png" and is not a .png, you can use Automator to rename .png something else before dropping them in the folder. Otherwise, the script won't pick up on .pngs that are not .pngs.
Converseen is an open source batch image converter and resizer for Linux and Windows. It supports more than 100 image formats and you can convert and resize an unlimited number of images to any of the most popular formats.
A: Yes. There is no native-Linux version of IrfanView. However, you can use IrfanView in conjunction with Linux programs like WINE, Windows Linux emulators and Linux-based virtual machines. Take the ZIP version of IrfanView and unzip it or copy your existing Windows IrfanView folder to Linux. This is easier because the installer may need additional Windows DLLs to run.
Probably the best tool around for all your batch image processing needs, however, is ImageMagick. It's free, open source, cross platform and can do just about everything you can think of including resizing, cropping, managing transparancy, montage and converting between most image formats under the sun. It would have been my first choice, but I found some (older) posts claiming that it did not work with NEF. Still, their website says it does, so you should try it out and in any case, it is really worth learning. Install it on Ubuntu with:
I'am tasked with converting tons of .doc files to .pdf. And the only way my supervisor wants me to do this is through MSWord 2010. I know I should be able to automate this with python COM automation. Only problem is I dont know how and where to start. I tried searching for some tutorials but was not able to find any (May be I might have, but I don't know what I'm looking for).
You can use the docx2pdf python package to bulk convert docx to pdf. It can be used as both a CLI and a python library. It requires Microsoft Office to be installed and uses COM on Windows and AppleScript (JXA) on macOS.
I have worked on this problem for half a day, so I think I should share some of my experience on this matter. Steven's answer is right, but it will fail on my computer. There are two key points to fix it here:
(1). The first time when I created the 'Word.Application' object, I should make it (the word app) visible before open any documents. (Actually, even I myself cannot explain why this works. If I do not do this on my computer, the program will crash when I try to open a document in the invisible model, then the 'Word.Application' object will be deleted by OS. )
After doing these two steps, the program will work perfectly with no failure anymore. The demo code is as below. If you have encountered the same problems, try to follow these two steps. Hope it helps.
As an alternative to the SaveAs function, you could also use ExportAsFixedFormat which gives you access to the PDF options dialog you would normally see in Word. With this you can specify bookmarks and other document properties.
It's worth noting that Stevens answer works, but make sure if using a for loop to export multiple files to place the ClientObject or Dispatch statements before the loop - it only needs to be created once - see my problem: Python win32com.client.Dispatch looping through Word documents and export to PDF; fails when next loop occurs
If you don't mind using PowerShell have a look at this Hey, Scripting Guy! article. The code presented could be adopted to use the wdFormatPDF enumeration value of WdSaveFormat (see here).This blog article presents a different implementation of the same idea.
I tried the accepted answer but wasn't particularly keen on the bloated PDFs Word was producing which was usually an order of magnitude bigger than expected. After looking how to disable the dialogs when using a virtual PDF printer I came across Bullzip PDF Printer and I've been rather impressed with its features. It's now replaced the other virtual printers I used previously. You'll find a "free community edition" on their download page.
The COM API can be found here and a list of the usable settings can be found here. The settings are written to a "runonce" file which is used for one print job only and then removed automatically. When printing multiple PDFs we need to make sure one print job completes before starting another to ensure the settings are used correctly for each file.
You should start from investigating so called virtual PDF print drivers.As soon as you will find one you should be able to write batch file that prints your DOC files into PDF files. You probably can do this in Python too (setup printer driver output and issue document/print command in MSWord, later can be done using command line AFAIR).
If you would like to convert your audio from one format to another, Max can read and write audio files in over 20 compressed and uncompressed formats at almost all sample rates and and in most sample sizes. For many popular formats the artist and album metadata is transferred seamlessly between the old and new files. Max can even split a single audio file into multiple tracks using a cue sheet.
Max leverages open source components and the resources of Mac OS X to provide extremely high-quality output. For example, MP3 encoding is accomplished with LAME, Ogg Vorbis encoding with aoTuV, FLAC encoding with libFLAC, and AAC and Apple Lossless encoding with Core Audio. Many PCM conversions are also possible using Core Audio and libsndfile.