What Is poi-scratchpad-5.2.3.jar?

What Is poi-scratchpad-5.2.3.jar?

✍: FYIcenter.com

poi-scratchpad-5.2.3.jar is one of the JAR files for Apache POI 5.2.3, which provides an API for Microsoft document files of Word, Excel, PowerPoint, and Visio.

poi-scratchpad-5.2.3.jar provides support for older versions of Microsoft document files like Word 97, Excel 97, PowerPoint 97, etc.

poi-scratchpad-5.2.3.jar is distributed as part of the poi-bin-5.2.3-20220909.zip download file.

JAR File Size and Download Location:

JAR name: poi-scratchpad-5.2.3.jar
Target JDK version: 9

File name: poi-scratchpad.jar, poi-scratchpad-5.2.3.jar
File size: 1897121 bytes
Release date: 09-09-2022
Download: Apache POI Website

Here are Java Source Code files for poi-scratchpad-5.2.3.jar:


/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at


   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

package org.apache.poi.hslf.blip;

import java.awt.Dimension;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.InflaterInputStream;

import org.apache.commons.io.input.UnsynchronizedByteArrayInputStream;
import org.apache.commons.io.output.UnsynchronizedByteArrayOutputStream;
import org.apache.poi.ddf.EscherBSERecord;
import org.apache.poi.ddf.EscherContainerRecord;
import org.apache.poi.hslf.exceptions.HSLFException;
import org.apache.poi.hslf.usermodel.HSLFSlideShow;
import org.apache.poi.sl.image.ImageHeaderWMF;
import org.apache.poi.util.IOUtils;
import org.apache.poi.util.Internal;
import org.apache.poi.util.Removal;
import org.apache.poi.util.Units;

 * Represents a WMF (Windows Metafile) picture data.
public final class WMF extends Metafile {

     * @deprecated Use {@link HSLFSlideShow#addPicture(byte[], org.apache.poi.sl.usermodel.PictureData.PictureType)} or one of its overloads to create new
     *             WMF. This API led to detached WMF instances (See Bugzilla
     *             46122) and prevented adding additional functionality.
    @Removal(version = "5.3")
    public WMF() {
        this(new EscherContainerRecord(), new EscherBSERecord());

     * Creates a new instance.
     * @param recordContainer Record tracking all pictures. Should be attached to the slideshow that this picture is
     *                        linked to.
     * @param bse Record referencing this picture. Should be attached to the slideshow that this picture is linked to.
    public WMF(EscherContainerRecord recordContainer, EscherBSERecord bse) {
        super(recordContainer, bse);

    public byte[] getData(){
        byte[] rawdata = getRawData();
        try (InputStream is = new UnsynchronizedByteArrayInputStream(rawdata)) {

            Header header = new Header();
            header.read(rawdata, CHECKSUM_SIZE*getUIDInstanceCount());
            long skipLen = header.getSize() + (long)CHECKSUM_SIZE*getUIDInstanceCount();
            long skipped = IOUtils.skipFully(is, skipLen);
            assert(skipped == skipLen);

            ImageHeaderWMF aldus = new ImageHeaderWMF(header.getBounds());
            UnsynchronizedByteArrayOutputStream out = new UnsynchronizedByteArrayOutputStream();

            try (InflaterInputStream inflater = new InflaterInputStream( is )) {
                IOUtils.copy(inflater, out);
            return out.toByteArray();
        } catch (IOException e){
            throw new HSLFException(e);

    protected byte[] formatImageForSlideshow(byte[] data) {
        int pos = 0;
        ImageHeaderWMF nHeader = new ImageHeaderWMF(data, pos);
        pos += nHeader.getLength();

        byte[] compressed = compress(data, pos, data.length-pos);

        Header header = new Header();
        header.setWmfSize(data.length - nHeader.getLength());
        Dimension nDim = nHeader.getSize();
        header.setDimension(new Dimension(Units.toEMU(nDim.getWidth()), Units.toEMU(nDim.getHeight())));

        byte[] checksum = getChecksum(data);
        byte[] rawData = new byte[checksum.length * getUIDInstanceCount() + header.getSize() + compressed.length];
        int offset = 0;

        System.arraycopy(checksum, 0, rawData, offset, checksum.length);
        offset += checksum.length;

        if (getUIDInstanceCount() == 2) {
            System.arraycopy(checksum, 0, rawData, offset, checksum.length);
            offset += checksum.length;

        header.write(rawData, offset);
        offset += header.getSize();
        System.arraycopy(compressed, 0, rawData, offset, compressed.length);

        return rawData;

    public PictureType getType(){
        return PictureType.WMF;

     * WMF signature is either {@code 0x2160} or {@code 0x2170}
    public int getSignature(){
        return (getUIDInstanceCount() == 1 ? 0x2160 : 0x2170);

     * Sets the WMF signature - either {@code 0x2160} or {@code 0x2170}
    public void setSignature(int signature) {
        switch (signature) {
            case 0x2160:
            case 0x2170:
                throw new IllegalArgumentException(signature+" is not a valid instance/signature value for WMF");


Or download all of them as a single archive file:

File name: poi-scratchpad-5.2.3-src.zip
File size: 1238744 bytes
Release date: 2022-09-09


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