Another year, in the graduation season, papers, resumes, portfolios, scanned copies of various certificates... a pile of PDF files are piled on the computer, some are tens of megabytes, and some are even hundreds of megabytes.Want to send a WeChat message to a tutor, HR, or classmate?The result file is too large to be sent out or compressed into a mosaic.Don't worry, today I will teach you a hardcore method that "compresses 3 seconds to send WeChat". You don't need to learn PS, you don't need to install complicated software, and Xiaobai can easily get it done.
First of all, the pain point: WeChat has an "invisible threshold" for file size, and more than 25MB is basically a break, not to mention those graduating works with 50MB.I once had a friend, after compressing more than 100 megabytes of graduation thesis PDF, the words were all muddled together, and the tutor directly returned a "I can't see clearly, resend".In fact, compressing PDFs is not "brainless shrinking", the key is to balance quality and size.
My favorite tools are PDF24 and SmallPDF on the web.The operation is simple to outrageous: open the webpage, upload the file, select "degree of compression", click "start", and download it in 3 seconds.For example, a 32MB graduation design specification, I choose "medium compression", directly into 8MB, the clarity is almost unchanged, WeChat seconds.If it is a resume or certificate, you can choose "maximum compression", the file can be as small as 1-2MB, but the text is slightly virtual, sending WeChat is enough.
Here's the thing: How do you know if compression works?Remember the Three-Sighted Principle.Look at the edges of the text: if there is blur or aliasing, it means that the pressure is too severe.Second, look at the details of the picture: if it is a portfolio, do not make the picture foggy after compression.Third, look at the file size: WeChat chat is recommended to be within 10MB, and email attachments should preferably not exceed 20MB.If the compression is still too large, you can try "segmentation compression", such as splitting the PDF into several pages and compressing it separately.
In addition to online tools, there are "hidden skills" on the desktop.Windows users can use Microsoft's "Print to PDF" function: open the original file, select "Print", select "Microsoft Print to PDF" on the printer, and then adjust the resolution in "Page Settings".To make it easier for Mac users, open it in Preview, click File - > Export to PDF, and select Reduce File Size in Quartz Filter.Both methods are free and safe, but are not suitable for bulk operation.
Finally, remind a few pits.First, don't use a website that "pays to download after compression", which is easy to be routed.Second, it is best to back up the original file before compressing it. In case of crashing, it is still possible to save it.Third, if the file is a scanned copy (such as a certificate), try to select "high quality" mode when compressing, otherwise the text will become blurry.The graduation season is precious, don't let the PDF get stuck in your future.Try it now, get it done in 3 seconds, and never worry about sending WeChat again!