Adobe Photoshop 文件格式解决方案
High Code API 和适用于 PSD、PSB 的免费应用程序，能够缩小文件大小并使用未记录的可能性进行压缩
减小 PSD 文件的大小
如果你使用 Aspose.PSD，缩小大 PSD 的大小是一个简单的操作。通过从 PSD 文件中删除缓存数据、合并图层、以更少的每种颜色位数转换为 PSD 格式，可以存档缩小大小。此外，您可以更改 PSD 文件的颜色模式，例如，从 CMYK 颜色更改为 RGBA 颜色会减小 PSD 文件的大小。该应用程序使用了未记录的PSD格式功能，因此最终结果可能会被破坏。只有当你清楚知道要存档的内容时，才使用 PSD 文件缩小。
Drag and drop a file or select add Image
You can reproduce the main functionality of this built-in app using Aspose.PSD for .NET
// Lossless PSD file reduce operation
// Remove Cache Data
Stream RemoveCacheData(PsdImage image)
{
foreach (var layer in image.Layers)
{
// Can be applied
if (layer is TextLayer || layer is FillLayer)
{
layer.SaveArgb32Pixels(layer.Bounds, new int[layer.Bounds.Width * layer.Bounds.Height]);
}
}
var stream = new MemoryStream();
image.Save(stream, new PsdOptions(image));
return stream;
}
// Applying RLE Compression to reduce size of PSD
Stream ApplyRleCompression(PsdImage image)
{
foreach (var layer in image.Layers)
{
foreach (var channelInformation in layer.ChannelInformation)
{
// Can be applied
if (channelInformation.CompressionMethod == CompressionMethod.Raw)
{
var stream = new MemoryStream();
image.Save(stream, new PsdOptions(image)
{
CompressionMethod = CompressionMethod.RLE
});
return stream;
}
}
}
// Can not be applied
return null;
}
// Lossy methods of PSD Size Reducing
// 8 Bit Conversion
Stream ApplyConversionTo8Bit(PsdImage image)
{
if (image.BitsPerChannel > 8)
{
var stream = new MemoryStream();
image.Save(stream, new PsdOptions(image)
{
ChannelBitsCount = 8
});
stream.Position = 0;
return stream;
}
return null;
}
// RGBA Conversion
Stream ApplyConversionToRGBA(PsdImage image)
{
if (image.ColorMode == ColorModes.Cmyk)
{
var stream = new MemoryStream();
image.Save(stream, new PsdOptions(image)
{
ColorMode = ColorModes.Rgb
});
stream.Position = 0;
return stream;
}
return null;
}
// Layers merging
Stream ApplyMergingLayers(PsdImage image)
{
if (image.Layers.Length > 1)
{
image.FlattenImage();
var stream = new MemoryStream();
image.Save(stream, new PsdOptions(image));
stream.Position = 0;
return stream;
}
return null;
}
// Remove Not Visible Layers
Stream RemoveNotVisibleLayers(PsdImage image)
{
var layersSet = new List<Layer>();
foreach (var layer in image.Layers)
{
// Can be applied
if ((!layer.IsVisible || !layer.IsVisibleInGroup) && !(layer is LayerGroup))
{
layersSet.Add(layer);
}
}
image.Layers = layersSet.ToArray();
var stream = new MemoryStream();
image.Save(stream, new PsdOptions(image));
return stream;
}You can download Aspose.PSD for .NET from Nuget package manager
You can reproduce the main functionality of this built-in app using Aspose.PSD for Java
public class CompressionUtils {
public static OutputStream removeCacheData(PsdImage image) {
for (Layer layer : image.getLayers()) {
if (layer instanceof TextLayer || layer instanceof FillLayer) {
layer.saveArgb32Pixels(layer.getBounds(), new int[layer.getBounds().getWidth() * layer.getBounds().getHeight()]);
}
}
ByteArrayOutputStream stream = new ByteArrayOutputStream();
image.save(stream, new PsdOptions(image));
return stream;
}
public static OutputStream applyRleCompression(PsdImage image) {
for (Layer layer : image.getLayers()) {
for (var channelInformation : layer.getChannelInformation()) {
if (channelInformation.getCompressionMethod() == CompressionMethod.Raw) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
image.save(stream, new PsdOptions(image) {{
setCompressionMethod(CompressionMethod.RLE);
}});
return stream;
}
}
}
return null;
}
public static OutputStream applyConversionTo8Bit(PsdImage image) {
if (image.getBitsPerChannel() > 8) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
image.save(stream, new PsdOptions(image) {{
setChannelBitsCount(8);
}});
stream.Position = 0;
return stream;
}
return null;
}
public static OutputStream applyConversionToRGBA(PsdImage image) {
if (image.getColorMode() == ColorModes.Cmyk) {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
image.save(stream, new PsdOptions(image) {{
setColorMode(ColorModes.Rgb);
}});
stream.Position = 0;
return stream;
}
return null;
}
public static OutputStream applyMergingLayers(PsdImage image) {
if (image.getLayers().length > 1) {
image.flattenImage();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
image.save(stream, new PsdOptions(image));
stream.Position = 0;
return stream;
}
return null;
}
public static OutputStream removeNotVisibleLayers(PsdImage image) {
List layersSet = new ArrayList<>();
for (Layer layer : image.getLayers()) {
if ((!layer.isVisible() || !layer.isVisibleInGroup()) && !(layer instanceof LayerGroup)) {
layersSet.add(layer);
}
}
image.setLayers(layersSet.toArray(new Layer[0]));
ByteArrayOutputStream stream = new ByteArrayOutputStream();
image.save(stream, new PsdOptions(image));
return stream;
}
}You can download Aspose.PSD for Java from Aspose Repository
Check the following list of documentation links:
Please check the offical documentation https://docs.aspose.com/psd/
This App is completely free, but it just a small piece of functionality that offers for you Aspose.PSD library. You can make your own app with any functionality of Aspose.PSD. If you can not find needed feature in Aspose.PSD, you can post on PSD Support Forum. The great support, different priceing plans, prioritized bug fixes and feature releasing for the Paid Support Customers.
List of Aspose.PSD versions for different configurations | |
Aspose.PSD for .NET | Aspose.PSD for Java |
 |  |
Aspose.PSD for .NET has the version for the most popular .NET versions including: .NET Framework 2, 3.5, 4.0, 4.0CP, .netstandard 2, .NET 5, 6, 7. Version of .NET Library for .NET 7 is suitable for the mobile development | Aspose.PSD for Java made on the Java 1.6, so it can be used in the any popular Java configurations. It's suitable for Cross-platform developement |
| Official Aspose.PSD for .NET page | Official Aspose.PSD for Java page |
| Aspose.PSD for .NET Pricing plans | Aspose.PSD for Java Pricing plans |
Please check the support forum. Where you can feel the real customer care | |
如果您需要减小PSB文件而不是PSD的大小，则可以对该应用程序进行少量修改。请查看”减小 PSB 的大小“应用程序。