AppleWalls
AppleWalls 是一个专注提供 Apple 装置（如 iPhone、iPad、Mac）系统中官方壁纸的在线资源平台。用户可直接下载无水印、高清（4K）版本的苹果官方背景图。
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PPT超级市场官网
免费下载PPT模板与PPT作品
VidsPlay
免费高清库存视频素材的在线库
3DDD俄罗斯
专业的3D模型下载社区
3DDD
在线3D素材模型资源分享网
图虫创意
正版商用图片、视频与音频素材库，作为Adobe Stock中国区战略合作伙伴，提供超4亿高清资源，支持创意与商业场景的一站式素材采购。
快图网
快图网提供免费的PNG元素和高清背景图片素材免费下载
5百丁
中国领先的PPT模板共享平台
tretars
The best free Mockups from the Web
PPTMind
分享高端ppt模板与keynote模板的数字作品交易平台
PPT+
PPT加直播、录制和分享—PPT+语音内容分享平台
优品PPT
高质量的模版，而且还有PPT图表，PPT背景图等资源
OfficePLUS
OfficePLUS，微软Office官方在线模板网站！
publicdomainarchive
New 100% Free Stock Photos. Every. Single. Week.
hdwallpapers
High Definition Wallpapers & Desktop Backgrounds
jeshoots
New Free Photos & Mockups in to your Inbox!
magdeleine
HAND-PICKED FREE PHOTOS FOR YOUR INSPIRATION
skitterphoto
a place to find, show and share public domain photos
mmtstock
Free photos for commercial use
skitterphoto
Free Stock Photos for Creative Professionals
lifeofpix
Free high resolution photography
imcreator
A curated collection of free web design resources, all for commercial use.
gratisography
Free high-resolution pictures you can use on your personal and commercial projects, free of copyright restrictions.
negativespace
Beautiful, High-Resolution Free Stock Photos
freenaturestock
Exclusive mindblowing freebies for designers and developers
thestocks
Use our FREE photos to tell your story!
55mm
Use our FREE photos to tell your story!
stokpic
Free Stock Photos For Commercial Use
papers
Wallpapers Every Hour!Hand collected :)
Notaselfie
Photos that happen along the way. You can use the images anyway you like. Have fun!